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Submission #596019

# Submission time Handle Problem Language Result Execution time Memory
596019 2022-07-14T09:21:14 Z proma Parachute rings (IOI12_rings) C++17
0 / 100
 4000 ms 30776 KB 
#include <bits/stdc++.h>

using namespace std;

int n, cnt = 0;
vector <int> deg;
vector <vector <int>> g;

void Init(int N_) {
    n = N_;
    deg.resize(n, 0);
    g.resize(n);
}

void Link(int A, int B) {
    deg[A] ++;
    deg[B] ++;
    g[A].push_back(B);
    g[B].push_back(A);
    if (deg[A] == 3) cnt ++;
    if (deg[B] == 3) cnt ++;
}

int CountCritical() {
    int res = 0;
    for (int v = 0; v < n; v ++) {
        int cur = 0;
        deg[v] = 0;
        for (auto i: g[v]) {
            deg[i] --;
        }
        int flag = 1;
        for (int i = 0; i < n; i ++) {
            if (deg[i] > 2) flag = 0;
        }
        res += flag;
        deg[v] = g[v].size();
        for (auto i: g[v]) {
            deg[i] ++;
        }
    }
    return res;
}

Compilation message

rings.cpp: In function 'int CountCritical()':
rings.cpp:27:13: warning: unused variable 'cur' [-Wunused-variable]
   27 |         int cur = 0;
      |             ^~~

Subtask #1
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 18 ms 576 KB Output is correct
3 Correct 25 ms 632 KB Output is correct
4 Incorrect 1 ms 340 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #2
0 / 17.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4099 ms 30776 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 18 ms 576 KB Output is correct
3 Correct 25 ms 632 KB Output is correct
4 Incorrect 1 ms 340 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #4
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 18 ms 576 KB Output is correct
3 Correct 25 ms 632 KB Output is correct
4 Incorrect 1 ms 340 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #5
0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 18 ms 576 KB Output is correct
3 Correct 25 ms 632 KB Output is correct
4 Incorrect 1 ms 340 KB Output isn't correct
5 Halted 0 ms 0 KB -