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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
#788658#114. Construction of Highway_8_8_#0 3ms3884kbC++231.7kb2024-11-27 17:47:502024-11-27 17:47:56

Judging History

你现在查看的是最新测评结果

  • [2024-11-27 17:47:56]
  • 评测
  • 测评结果:0
  • 用时:3ms
  • 内存:3884kb
  • [2024-11-27 17:47:50]
  • 提交

answer

#include <bits/stdc++.h> 

using namespace std;

typedef long long ll;

const int N = (int)1e5 + 12, MOD = (int)1e9 + 7;

int n, pr[N], c[N], sum = 0;

void make() {
    vector<int> cl;
    for(int i = 1; i <= n; i++) {
        cl.push_back(c[i]);
    }
    sort(cl.begin(), cl.end());
    cl.resize(unique(cl.begin(), cl.end()) - cl.begin());
    for(int i = 1; i <= n; i++) {
        c[i] = lower_bound(cl.begin(), cl.end(), c[i]) - cl.begin() + 1;
    }
}
int t[N];
void add(int pos, int val) {
    while(pos <= n ) {
        t[pos] += val;
        pos += pos & -pos;
    }
}
int get(int i) {
    int ret = 0;
    while(i) {
        ret += t[i];
        i -= i & -i;
    }
    return ret;
}
int get(int l, int r) {
    return get(r) - get(l - 1);
}
void test() {
    cin >> n;
    for(int i = 1; i <= n; i++) {
        cin >> c[i];
    }
    make();
    for(int i = 1; i <= n - 1; i++) {
        int a, b;
        cin >> a >> b;
        pr[b] = a;
        vector<int> x;
        set<int> st;
        while(a) {
            x.push_back(a);
            st.insert(c[a]);
            a = pr[a];
        }
        sum += (int)st.size();
        assert(sum <= n * 4);
        reverse(x.begin(), x.end());
        int res = 0, m = (int)x.size();
        for(int j = 0; j < m; j++) {
            res += get(c[x[j]] + 1, n);
            add(c[x[j]], 1);
        }
        for(int j : x) {
            add(c[j], -1);
        }
        for(int j : x) {
            c[j] = c[b];
        }
        cout << res << '\n';
    }
}

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);

    int t = 1;
    // cin >> t;

    while(t--) 
        test();

    return 0;
}

详细

Subtask #1:

score: 0
Runtime Error

Test #1:

score: 7
Accepted
time: 0ms
memory: 3860kb

input:

2
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1 2

output:

0

result:

ok single line: '0'

Test #2:

score: 7
Accepted
time: 0ms
memory: 3576kb

input:

10
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1 3
1 5
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3 8
1 4
3 10
7 6
5 9
5 2

output:

0
0
0
1
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1
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0
0

result:

ok 9 lines

Test #3:

score: 7
Accepted
time: 0ms
memory: 3664kb

input:

100
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output:

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result:

ok 99 lines

Test #4:

score: 7
Accepted
time: 1ms
memory: 3580kb

input:

300
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output:

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0...

result:

ok 299 lines

Test #5:

score: 7
Accepted
time: 0ms
memory: 3644kb

input:

500
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output:

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2...

result:

ok 499 lines

Test #6:

score: 7
Accepted
time: 0ms
memory: 3832kb

input:

500
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output:

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1...

result:

ok 499 lines

Test #7:

score: 7
Accepted
time: 1ms
memory: 3676kb

input:

500
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output:

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11...

result:

ok 499 lines

Test #8:

score: 7
Accepted
time: 3ms
memory: 3576kb

input:

500
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output:

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result:

ok 499 lines

Test #9:

score: 7
Accepted
time: 3ms
memory: 3804kb

input:

500
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output:

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result:

ok 499 lines

Test #10:

score: 7
Accepted
time: 3ms
memory: 3576kb

input:

500
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output:

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result:

ok 499 lines

Test #11:

score: 7
Accepted
time: 2ms
memory: 3644kb

input:

500
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output:

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result:

ok 499 lines

Test #12:

score: 7
Accepted
time: 0ms
memory: 3884kb

input:

500
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output:

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result:

ok 499 lines

Test #13:

score: 7
Accepted
time: 2ms
memory: 3584kb

input:

500
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output:

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result:

ok 499 lines

Test #14:

score: 7
Accepted
time: 0ms
memory: 3680kb

input:

500
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output:

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...

result:

ok 499 lines

Test #15:

score: 0
Runtime Error

input:

500
1 335 485 167 63 88 17 421 45 138 4 142 413 49 215 424 162 107 386 477 353 259 295 447 109 9 299 359 270 497 382 244 143 396 399 194 26 140 268 134 343 293 471 258 422 475 57 478 289 148 29 329 96 400 58 217 237 241 290 355 350 32 403 35 139 220 223 271 253 218 113 10 6 454 192 305 416 472 195 3...

output:


result:


Subtask #2:

score: 0
Skipped

Dependency #1:

0%

Subtask #3:

score: 0
Skipped

Dependency #1:

0%