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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#297865#6627. Line Townchy1232113 96ms30932kbC++143.2kb2024-01-05 12:18:072024-01-05 12:18:07

Judging History

你现在查看的是最新测评结果

  • [2024-01-05 12:18:07]
  • 评测
  • 测评结果:13
  • 用时:96ms
  • 内存:30932kb
  • [2024-01-05 12:18:07]
  • 提交

answer

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

constexpr int N = 5e5 + 10;
constexpr ll inf = 0x3f3f3f3f3f3f3f3fll;

int n, A[N], B[N], pos[N];
ll f[N][2], c[N][2];

struct Node {
    int h, p;

    bool operator<(const Node &rhs) const {
        if (abs(h) == abs(rhs.h)) return h == rhs.h ? p < rhs.p : h < rhs.h;
        return abs(h) < abs(rhs.h);
    }
} a[N];

namespace BIT {
    int c[N];
    
    void fix(int x, int val = 1) {for (int i = x; i <= n; i += i & (-i)) c[i] += val;}

    int query(int x) {int res = 0; for (int i = x; i; i -= i & (-i)) res += c[i]; return res;}
}

ll calc(int len) {
    ll res = 0;
    for (int i = 1; i <= len; i++) if (!pos) return inf;
    for (int i = 1; i <= len; i++) res += BIT::query(n) - BIT::query(pos[i]), BIT::fix(pos[i]);
    for (int i = 1; i <= len; i++) BIT::fix(pos[i], -1);
    return res;
}

bool geto(int o, int x) {return (x & 1) ^ o ^ 1;}

ll dp(int cur, int o) {
    if (f[cur][o] < inf) return f[cur][o];
    if (!cur || !a[cur].h) return 0;
    int nxt = cur; while (nxt > 1 && abs(a[nxt - 1].h) == abs(a[cur].h)) nxt--;
    int totA = 0, totB = 0;
    for (int i = nxt; i <= cur; i++) (a[i].h < 0 ? A[++totA] : B[++totB]) = a[i].p;
    int len = cur - nxt + 1, cntA = 0, cntB = 0;
    for (int i = 1; i <= len; i++) pos[i] = geto(o, i) ? A[++cntA] : B[++cntB];
    ll f0 = inf, f1 = inf;
    if ((len & 1) != (cur & 1)) {
        if (cntA == totA && cntB == totB) {
            ll s = calc(len);
            for (int i = 1; i <= len; i++) s += c[pos[i]][0];
            for (int i = len; i >= 0; i--) {
                geto(o, i) ? f0 = min(f0, s) : f1 = min(f1, s);
                s += c[pos[i]][1] - c[pos[i]][0];
            }
        }
    } else {
        int p = len;
        if (cntA != totA || cntB != totB) {
            cntA = cntB = 0, p--;
            for (int i = 1; i < len; i++) pos[i] = geto(o, i) ? A[++cntA] : B[++cntB];
            pos[len] = geto(o, len) ? B[++cntB] : A[++cntA];
        }   
        if (cntA == totA && cntB == totB) {
            ll s = calc(len);
            for (int i = 1; i <= p; i++) s += c[pos[i]][0];
            for (int i = p + 1; i <= len; i++) s += c[pos[i]][1];
            for (int i = p; i >= 0; i -= 2) {
                geto(o, i) ? f0 = min(f0, s) : f1 = min(f1, s);
                if (i >= 2) {
                    s += c[pos[i]][1] + c[pos[i - 1]][1] - c[pos[i]][0] - c[pos[i - 1]][0];
                    (pos[i - 1] < pos[i]) ? s++ : s--;
                }
            }
        }
    }
    return f[cur][o] = min(f[cur][o], min(f0 + dp(nxt - 1, 0), f1 + dp(nxt - 1, 1)));
}

int main() {
    ios_base::sync_with_stdio(0); cin.tie(nullptr), cout.tie(nullptr);
    cin >> n; for (int i = 1; i <= n; i++) a[i].p = i, cin >> a[i].h;
    for (int i = 1; i <= n; i += 2) a[i].h = -a[i].h;
    sort(a + 1, a + n + 1); int j = 1;
    for (int i = 1; i <= n; i++) {
        while(abs(a[j].h) < abs(a[i].h)) BIT::fix(a[j++].p);
        c[a[i].p][0] = BIT::query(a[i].p - 1), c[a[i].p][1] = BIT::query(n) - BIT::query(a[i].p);
    }
    memset(BIT::c, 0, sizeof(BIT::c)), memset(f, 0x3f, sizeof(f));
    cout << (dp(n, 0) < inf ? dp(n, 0) : -1);
    return 0;
}

详细

Subtask #1:

score: 3
Accepted

Test #1:

score: 3
Accepted
time: 0ms
memory: 20928kb

input:

10
1 1 1 1 1 -1 -1 -1 1 -1

output:

-1

result:

ok 1 number(s): "-1"

Test #2:

score: 0
Accepted
time: 0ms
memory: 21300kb

input:

10
1 1 1 1 1 1 -1 1 1 -1

output:

3

result:

ok 1 number(s): "3"

Test #3:

score: 0
Accepted
time: 0ms
memory: 21832kb

input:

1
-1

output:

0

result:

ok 1 number(s): "0"

Test #4:

score: 0
Accepted
time: 0ms
memory: 21196kb

input:

2000
1 -1 -1 -1 -1 -1 1 -1 1 1 1 -1 -1 -1 1 1 -1 1 1 -1 -1 1 -1 -1 1 -1 1 -1 1 1 -1 1 -1 -1 1 -1 -1 -1 -1 1 -1 -1 -1 1 -1 -1 1 1 -1 -1 1 -1 -1 -1 1 -1 -1 1 1 -1 -1 -1 1 1 -1 1 -1 1 1 -1 -1 -1 1 1 1 -1 1 1 -1 -1 1 -1 1 1 1 1 -1 -1 -1 1 1 -1 -1 1 1 1 -1 -1 -1 -1 1 -1 -1 1 1 -1 1 -1 1 -1 -1 -1 1 -1 -1 ...

output:

15146

result:

ok 1 number(s): "15146"

Test #5:

score: 0
Accepted
time: 0ms
memory: 21120kb

input:

2000
-1 -1 1 -1 1 -1 -1 -1 -1 -1 1 -1 -1 -1 -1 1 -1 -1 -1 -1 1 -1 -1 1 -1 1 1 -1 1 1 1 -1 1 1 1 1 1 -1 -1 -1 -1 1 1 -1 -1 -1 1 -1 -1 1 1 1 1 -1 -1 1 -1 -1 1 -1 -1 -1 1 1 1 1 1 -1 -1 -1 -1 1 1 -1 1 1 1 1 -1 1 1 1 1 -1 -1 -1 -1 1 1 1 1 1 1 -1 -1 1 1 1 1 1 -1 -1 -1 -1 1 -1 1 1 -1 1 1 1 -1 1 1 -1 -1 -1 ...

output:

24933

result:

ok 1 number(s): "24933"

Test #6:

score: 0
Accepted
time: 0ms
memory: 22540kb

input:

2000
1 1 -1 -1 -1 -1 1 1 -1 1 -1 1 1 1 -1 -1 -1 1 -1 -1 1 1 -1 -1 1 1 -1 1 1 -1 1 1 -1 1 1 1 -1 -1 1 -1 -1 1 -1 -1 1 -1 1 -1 1 1 1 -1 -1 -1 -1 1 -1 1 -1 1 1 -1 1 1 1 1 -1 1 1 1 1 -1 -1 1 1 1 -1 1 1 1 1 1 -1 -1 -1 1 1 -1 1 1 -1 -1 1 -1 1 -1 -1 1 1 1 -1 -1 1 1 -1 1 -1 -1 -1 1 -1 -1 -1 1 -1 1 -1 -1 1 -...

output:

18090

result:

ok 1 number(s): "18090"

Test #7:

score: 0
Accepted
time: 0ms
memory: 22668kb

input:

2000
-1 -1 -1 -1 -1 1 1 -1 -1 -1 1 1 -1 -1 1 -1 1 1 1 1 -1 -1 1 1 1 1 -1 -1 -1 -1 1 1 1 1 1 -1 1 -1 -1 -1 -1 -1 -1 1 1 -1 -1 -1 -1 -1 1 1 -1 1 -1 -1 1 1 -1 1 1 -1 -1 -1 -1 1 -1 1 1 -1 -1 1 -1 1 1 -1 -1 1 1 -1 1 -1 -1 1 -1 1 1 -1 -1 -1 1 -1 -1 1 1 1 -1 1 1 -1 -1 -1 1 -1 -1 1 -1 1 1 1 -1 1 -1 -1 1 1 1...

output:

-1

result:

ok 1 number(s): "-1"

Test #8:

score: 0
Accepted
time: 4ms
memory: 22616kb

input:

2000
-1 1 -1 1 1 -1 -1 1 1 -1 1 1 -1 1 -1 -1 1 -1 1 1 1 1 -1 -1 -1 1 -1 1 -1 -1 1 1 -1 1 -1 -1 1 -1 1 -1 1 1 1 1 1 -1 -1 -1 1 -1 -1 -1 -1 1 1 1 1 1 1 1 -1 -1 -1 -1 -1 -1 -1 1 -1 1 1 -1 -1 -1 1 -1 1 1 1 -1 1 1 1 1 -1 -1 -1 1 -1 1 -1 -1 1 -1 -1 -1 -1 -1 -1 -1 -1 1 -1 1 1 -1 1 -1 1 -1 -1 -1 1 -1 -1 -1 ...

output:

9973

result:

ok 1 number(s): "9973"

Test #9:

score: 0
Accepted
time: 4ms
memory: 20740kb

input:

2000
-1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 ...

output:

499500

result:

ok 1 number(s): "499500"

Test #10:

score: 0
Accepted
time: 4ms
memory: 22336kb

input:

2000
1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 ...

output:

499500

result:

ok 1 number(s): "499500"

Test #11:

score: 0
Accepted
time: 2ms
memory: 21196kb

input:

1999
1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 ...

output:

499500

result:

ok 1 number(s): "499500"

Test #12:

score: 0
Accepted
time: 0ms
memory: 23848kb

input:

1997
1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 ...

output:

498501

result:

ok 1 number(s): "498501"

Test #13:

score: 0
Accepted
time: 2ms
memory: 21320kb

input:

2000
1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 ...

output:

-1

result:

ok 1 number(s): "-1"

Subtask #2:

score: 3
Accepted

Dependency #1:

100%
Accepted

Test #14:

score: 3
Accepted
time: 0ms
memory: 20184kb

input:

1
1

output:

0

result:

ok 1 number(s): "0"

Test #15:

score: 0
Accepted
time: 89ms
memory: 30088kb

input:

500000
1 -1 -1 -1 -1 1 -1 -1 1 -1 1 -1 -1 -1 -1 1 -1 1 1 -1 1 -1 1 1 1 -1 -1 1 -1 1 1 1 1 1 -1 -1 -1 1 -1 1 1 1 1 1 1 1 -1 -1 1 1 -1 1 1 1 -1 1 -1 1 1 -1 -1 1 -1 -1 -1 1 -1 1 -1 -1 -1 1 -1 1 1 -1 1 1 1 -1 1 1 1 1 1 1 1 1 1 -1 1 1 1 -1 -1 -1 1 -1 1 -1 1 1 1 1 -1 1 -1 -1 1 1 -1 1 1 1 1 -1 1 1 -1 -1 1 ...

output:

29737766

result:

ok 1 number(s): "29737766"

Test #16:

score: 0
Accepted
time: 96ms
memory: 30012kb

input:

500000
1 -1 -1 1 1 1 1 1 1 1 1 1 -1 1 -1 -1 1 -1 1 -1 1 1 -1 1 -1 -1 1 -1 1 -1 -1 1 -1 -1 -1 -1 1 -1 1 -1 1 -1 -1 1 -1 -1 1 -1 1 1 1 1 -1 1 -1 1 -1 1 1 1 -1 1 -1 -1 -1 -1 -1 1 1 -1 1 -1 -1 -1 1 1 1 -1 -1 -1 -1 -1 -1 1 1 -1 1 -1 -1 1 1 -1 -1 1 -1 -1 -1 1 -1 1 1 1 1 -1 1 1 -1 1 -1 1 1 -1 1 -1 -1 -1 -1...

output:

66957355

result:

ok 1 number(s): "66957355"

Test #17:

score: 0
Accepted
time: 88ms
memory: 30068kb

input:

500000
1 -1 1 1 1 -1 1 1 -1 1 1 1 -1 -1 -1 1 1 1 1 -1 -1 -1 -1 1 1 -1 -1 -1 1 -1 -1 -1 1 1 -1 1 -1 1 1 -1 -1 -1 -1 1 1 1 1 -1 1 -1 -1 -1 -1 -1 1 -1 -1 -1 -1 1 -1 1 -1 -1 1 1 1 -1 -1 -1 -1 1 1 1 1 -1 1 1 -1 -1 1 1 -1 -1 1 -1 1 1 -1 1 -1 -1 1 -1 1 1 1 -1 1 1 -1 -1 1 1 1 -1 1 -1 1 -1 -1 -1 -1 -1 1 -1 1...

output:

50480873

result:

ok 1 number(s): "50480873"

Test #18:

score: 0
Accepted
time: 58ms
memory: 29964kb

input:

500000
-1 1 1 -1 1 1 -1 1 1 -1 1 1 1 -1 -1 1 -1 1 -1 -1 1 -1 1 -1 -1 1 1 -1 -1 1 1 -1 1 1 1 -1 1 1 -1 1 1 -1 1 1 -1 1 1 1 1 -1 -1 -1 -1 -1 1 1 -1 -1 -1 1 -1 1 1 -1 1 1 -1 1 1 1 -1 -1 -1 1 -1 -1 -1 1 -1 -1 1 -1 1 1 -1 -1 1 -1 -1 1 -1 1 -1 1 -1 -1 1 1 1 -1 1 -1 1 -1 1 1 1 1 1 -1 1 -1 1 1 1 -1 -1 -1 -1...

output:

-1

result:

ok 1 number(s): "-1"

Test #19:

score: 0
Accepted
time: 91ms
memory: 30792kb

input:

500000
1 1 1 1 -1 -1 -1 1 -1 1 1 -1 -1 1 1 1 -1 -1 1 1 -1 -1 -1 -1 -1 -1 1 -1 1 -1 1 -1 1 -1 1 1 -1 1 1 -1 -1 -1 -1 -1 -1 1 1 -1 1 1 -1 -1 -1 -1 -1 1 1 1 -1 1 -1 -1 1 1 -1 -1 1 1 -1 -1 -1 1 1 1 -1 -1 -1 1 1 1 -1 1 1 1 1 1 1 -1 1 -1 -1 -1 1 -1 -1 1 -1 1 -1 -1 1 -1 1 1 1 1 1 1 -1 -1 -1 -1 1 1 -1 1 1 1...

output:

90473670

result:

ok 1 number(s): "90473670"

Test #20:

score: 0
Accepted
time: 41ms
memory: 30336kb

input:

500000
-1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 ...

output:

31249875000

result:

ok 1 number(s): "31249875000"

Test #21:

score: 0
Accepted
time: 55ms
memory: 29968kb

input:

500000
1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -...

output:

31249875000

result:

ok 1 number(s): "31249875000"

Test #22:

score: 0
Accepted
time: 57ms
memory: 29968kb

input:

499999
1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -...

output:

31249875000

result:

ok 1 number(s): "31249875000"

Test #23:

score: 0
Accepted
time: 44ms
memory: 30008kb

input:

499997
-1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 ...

output:

31249375003

result:

ok 1 number(s): "31249375003"

Test #24:

score: 0
Accepted
time: 41ms
memory: 30276kb

input:

500000
1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -1 1 -...

output:

-1

result:

ok 1 number(s): "-1"

Subtask #3:

score: 3
Accepted

Dependency #1:

100%
Accepted

Test #25:

score: 3
Accepted
time: 0ms
memory: 23864kb

input:

10
0 1 0 0 1 1 -1 0 1 -1

output:

9

result:

ok 1 number(s): "9"

Test #26:

score: 0
Accepted
time: 0ms
memory: 21336kb

input:

10
-1 1 0 0 1 0 -1 0 1 -1

output:

10

result:

ok 1 number(s): "10"

Test #27:

score: 0
Accepted
time: 3ms
memory: 17936kb

input:

1
0

output:

0

result:

ok 1 number(s): "0"

Test #28:

score: 0
Accepted
time: 0ms
memory: 20860kb

input:

2000
0 1 -1 -1 1 1 0 1 0 -1 0 0 0 1 0 -1 1 0 -1 1 1 0 0 1 0 -1 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 -1 -1 -1 -1 0 0 0 0 0 1 -1 0 0 0 1 -1 0 0 -1 0 -1 0 1 1 -1 0 -1 0 -1 0 0 -1 1 1 -1 0 0 0 0 -1 -1 1 -1 0 0 0 0 0 -1 0 -1 1 0 0 0 1 0 0 1 1 0 0 0 0 0 1 -1 0 -1 1 1 1 1 0 1 1 0 0 1 0 1 0 -1 -1 0 0 -1 -1...

output:

252956

result:

ok 1 number(s): "252956"

Test #29:

score: 0
Accepted
time: 0ms
memory: 23592kb

input:

2000
1 0 1 -1 -1 1 -1 0 -1 0 -1 1 0 0 -1 1 0 0 -1 0 0 0 -1 -1 0 0 0 0 0 -1 0 0 0 1 0 0 -1 1 1 1 0 1 1 1 0 -1 -1 1 1 1 1 0 -1 1 0 1 0 0 0 0 -1 1 -1 -1 -1 0 0 0 -1 0 1 1 1 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 -1 0 0 0 -1 0 0 -1 0 -1 0 -1 0 0 1 -1 1 0 0 0 0 0 1 0 0 -1 0 1 0 0 1 1 -1 1 0 0 0 0 -1 0 -1 0 -1 0 0...

output:

262836

result:

ok 1 number(s): "262836"

Test #30:

score: 0
Accepted
time: 0ms
memory: 23516kb

input:

2000
-1 1 1 0 0 0 0 1 0 -1 1 -1 1 0 1 0 1 0 0 1 0 0 -1 -1 0 0 1 0 1 0 -1 0 0 0 0 0 1 0 1 -1 1 0 -1 -1 1 0 -1 0 1 1 -1 0 -1 0 0 -1 1 1 0 -1 -1 0 -1 0 0 0 1 0 -1 -1 -1 0 -1 0 1 1 0 -1 0 -1 1 0 -1 0 -1 1 0 0 1 -1 0 0 0 0 0 0 0 0 -1 0 0 -1 0 -1 1 0 0 0 0 -1 0 1 0 -1 -1 1 -1 0 0 1 -1 -1 -1 1 1 0 -1 0 0 0...

output:

259619

result:

ok 1 number(s): "259619"

Test #31:

score: 0
Accepted
time: 0ms
memory: 21156kb

input:

2000
-1 -1 1 0 0 0 -1 0 0 -1 -1 0 -1 0 -1 0 1 0 0 1 0 0 0 -1 0 0 -1 1 0 1 0 -1 1 -1 -1 -1 -1 0 0 1 0 0 0 -1 0 -1 0 0 1 -1 0 0 0 1 0 0 0 1 0 0 0 1 0 -1 -1 0 1 0 1 -1 -1 -1 1 1 0 1 -1 -1 0 1 0 0 0 0 0 0 -1 -1 0 -1 -1 0 -1 -1 1 1 1 -1 1 0 0 0 1 -1 -1 0 -1 -1 0 0 0 -1 0 1 0 0 0 0 0 -1 0 0 -1 0 -1 0 -1 -...

output:

-1

result:

ok 1 number(s): "-1"

Test #32:

score: 0
Accepted
time: 0ms
memory: 21116kb

input:

1999
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output:

216714

result:

ok 1 number(s): "216714"

Test #33:

score: 0
Accepted
time: 0ms
memory: 22776kb

input:

2000
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output:

499500

result:

ok 1 number(s): "499500"

Test #34:

score: 0
Accepted
time: 0ms
memory: 22652kb

input:

2000
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output:

624750

result:

ok 1 number(s): "624750"

Test #35:

score: 0
Accepted
time: 5ms
memory: 23928kb

input:

2000
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output:

624249

result:

ok 1 number(s): "624249"

Test #36:

score: 0
Accepted
time: 0ms
memory: 20856kb

input:

1998
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output:

-1

result:

ok 1 number(s): "-1"

Test #37:

score: 0
Accepted
time: 0ms
memory: 21144kb

input:

1999
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output:

-1

result:

ok 1 number(s): "-1"

Test #38:

score: 0
Accepted
time: 0ms
memory: 21256kb

input:

1999
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output:

666333

result:

ok 1 number(s): "666333"

Test #39:

score: 0
Accepted
time: 0ms
memory: 22476kb

input:

2000
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output:

666333

result:

ok 1 number(s): "666333"

Test #40:

score: 0
Accepted
time: 4ms
memory: 22840kb

input:

1999
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output:

222111

result:

ok 1 number(s): "222111"

Test #41:

score: 0
Accepted
time: 0ms
memory: 18100kb

input:

2000
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output:

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result:

ok 1 number(s): "0"

Test #42:

score: 0
Accepted
time: 4ms
memory: 19900kb

input:

1910
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output:

-1

result:

ok 1 number(s): "-1"

Test #43:

score: 0
Accepted
time: 4ms
memory: 21296kb

input:

2000
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output:

572

result:

ok 1 number(s): "572"

Subtask #4:

score: 4
Accepted

Dependency #1:

100%
Accepted

Dependency #2:

100%
Accepted

Test #44:

score: 4
Accepted
time: 85ms
memory: 29476kb

input:

500000
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output:

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result:

ok 1 number(s): "15602272809"

Test #45:

score: 0
Accepted
time: 91ms
memory: 30004kb

input:

500000
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output:

15694076101

result:

ok 1 number(s): "15694076101"

Test #46:

score: 0
Accepted
time: 85ms
memory: 30444kb

input:

500000
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output:

15625336308

result:

ok 1 number(s): "15625336308"

Test #47:

score: 0
Accepted
time: 71ms
memory: 30464kb

input:

500000
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output:

-1

result:

ok 1 number(s): "-1"

Test #48:

score: 0
Accepted
time: 83ms
memory: 30084kb

input:

499999
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output:

13935079333

result:

ok 1 number(s): "13935079333"

Test #49:

score: 0
Accepted
time: 53ms
memory: 30932kb

input:

500000
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output:

31249875000

result:

ok 1 number(s): "31249875000"

Test #50:

score: 0
Accepted
time: 56ms
memory: 29460kb

input:

500000
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output:

39062437500

result:

ok 1 number(s): "39062437500"

Test #51:

score: 0
Accepted
time: 35ms
memory: 30808kb

input:

499998
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output:

39061937499

result:

ok 1 number(s): "39061937499"

Test #52:

score: 0
Accepted
time: 49ms
memory: 29992kb

input:

500000
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output:

39062312499

result:

ok 1 number(s): "39062312499"

Test #53:

score: 0
Accepted
time: 26ms
memory: 30756kb

input:

499999
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output:

-1

result:

ok 1 number(s): "-1"

Test #54:

score: 0
Accepted
time: 57ms
memory: 30672kb

input:

499999
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output:

41666583333

result:

ok 1 number(s): "41666583333"

Test #55:

score: 0
Accepted
time: 48ms
memory: 29688kb

input:

499999
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output:

41666250001

result:

ok 1 number(s): "41666250001"

Test #56:

score: 0
Accepted
time: 61ms
memory: 30572kb

input:

500000
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output:

13888861111

result:

ok 1 number(s): "13888861111"

Test #57:

score: 0
Accepted
time: 25ms
memory: 26792kb

input:

500000
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output:

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result:

ok 1 number(s): "0"

Test #58:

score: 0
Accepted
time: 43ms
memory: 27220kb

input:

499100
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output:

212037

result:

ok 1 number(s): "212037"

Test #59:

score: 0
Accepted
time: 50ms
memory: 29944kb

input:

500000
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output:

252209

result:

ok 1 number(s): "252209"

Subtask #5:

score: 0
Time Limit Exceeded

Test #60:

score: 4
Accepted
time: 0ms
memory: 22116kb

input:

10
3 10 5 -9 7 2 -6 1 8 0

output:

-1

result:

ok 1 number(s): "-1"

Test #61:

score: 0
Accepted
time: 0ms
memory: 21696kb

input:

10
-9 0 -1 7 5 10 6 3 2 -8

output:

13

result:

ok 1 number(s): "13"

Test #62:

score: -4
Time Limit Exceeded

input:

2000
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output:


result:


Subtask #6:

score: 0
Skipped

Dependency #5:

0%

Subtask #7:

score: 0
Skipped

Dependency #3:

100%
Accepted

Dependency #5:

0%

Subtask #8:

score: 0
Skipped

Dependency #1:

100%
Accepted

Dependency #2:

100%
Accepted

Dependency #3:

100%
Accepted

Dependency #4:

100%
Accepted

Dependency #5:

0%