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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#721969 | #6531. Base Station Construction | Agakiss | WA | 111ms | 16916kb | C++20 | 2.0kb | 2024-11-07 17:20:08 | 2024-11-07 17:20:14 |
Judging History
answer
#include<bits/stdc++.h>
#define endl '\n'
//#define endl std::endl
#define i64 long long
#define pb push_back
#define pii std::pair<i64, i64>
#define INF 0x3f3f3f3f3f3f3f3f
const i64 N = 5e5 + 10;
i64 T, n, m, pos, ans, L;
i64 a[N], dp[N];
std::priority_queue<i64> pq;
struct tree {
i64 val;
} t[N * 6];
struct rec {
i64 l, r;
} p[N];
void pushup(i64 p) {
t[p].val = std::min(t[p << 1].val, t[p << 1 | 1].val);
}
void add(i64 p, i64 l, i64 r, i64 x, i64 k) {
if (l == r) {
t[p].val = std::min(t[p].val, k);
return;
}
i64 mid = (l + r) >> 1;
if (x <= mid) add(p << 1, l, mid, x, k);
else add(p << 1 | 1, mid + 1, r, x, k);
pushup(p);
}
i64 query(i64 p, i64 l, i64 r, i64 x, i64 y) {
if (y < x) return 0;
if (x <= l && r <= y) return t[p].val;
i64 mid = (l + r) >> 1, res = INF;
if (x <= mid) res = std::min(res, query(p << 1, l, mid, x, y));
if (y > mid) res = std::min(res, query(p << 1 | 1, mid + 1, r, x, y));
return res;
}
int main() {
std::ios::sync_with_stdio(false);
std::cin.tie(0), std::cout.tie(0);
std::cin >> T;
while (T--) {
std::cin >> n;
for (i64 i = 1; i <= n; i++)
std::cin >> a[i];
std::cin >> m;
L = 0;
for (i64 i = 1; i <= m; i++)
std::cin >> p[i].l >> p[i].r, L = std::max(L, p[i].l);
std::sort(p + 1, p + m + 1, [](auto x, auto y){ return x.r < y.r || x.r == y.r && x.l < y.l; });
pos = 1;
for (i64 i = 1; i <= n * 6; i++)
t[i].val = INF;
//std::cout << "*" << endl;
while (!pq.empty()) pq.pop();
pq.push(0);
add(1, 0, n, 0, 0);
for (int i = 1; i <= n; i++)
dp[i] = INF;
for (i64 i = 1; i <= n; i++) {
while (p[pos].r < i && pos < m) pq.push(p[pos].l), pos++;
dp[i] = query(1, 0, n, pq.top(), i - 1) + a[i];
add(1, 0, n, i, dp[i]);
//std::cout << "*" << endl;
}
//std::cout << "*" << endl;
ans = INF;
/*for (i64 i = 1; i <= n; i++)
std::cout << dp[i] << " ";
std::cout << endl;
*/
for (i64 i = L; i <= n; i++)
ans = std::min(ans, dp[i]);
std::cout << ans << endl;
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 9760kb
input:
2 5 3 2 4 1 100 3 1 3 2 4 5 5 5 7 3 4 2 2 3 1 4 2 3 4 5
output:
102 5
result:
ok 2 number(s): "102 5"
Test #2:
score: -100
Wrong Answer
time: 111ms
memory: 16916kb
input:
6201 12 88 78 46 95 84 98 55 3 68 42 6 18 19 6 9 10 11 12 12 8 11 8 12 2 3 2 3 1 5 9 9 7 8 6 11 2 4 12 12 2 4 2 9 7 10 8 8 1 7 6 11 5 76 27 48 66 61 2 1 4 3 5 8 64 81 20 6 86 9 4 55 1 7 7 9 1 43 18 81 11 22 9 61 83 14 5 6 2 6 5 8 1 4 9 9 9 9 7 7 2 5 8 9 5 6 4 8 5 8 9 9 6 6 10 66 41 84 7 80 31 22 96 ...
output:
141 48 4 126 303 141 23 170 159 139 153 194 136 89 230 93 287 89 124 130 148 27 1 193 194 93 239 303 236 150 177 57 13 4 24 66 83 160 108 62 35 122 156 81 115 138 54 242 126 28 171 86 311 244 262 87 302 38 86 173 30 129 75 91 90 179 81 224 142 154 77 111 194 247 211 53 66 17 213 101 308 137 177 13 2...
result:
wrong answer 33rd numbers differ - expected: '46', found: '13'