Submission #62771483

Source Code Expand

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
#include <bits/stdc++.h>
using namespace std;
using i64 = long long;
int main() {
    cin.tie(nullptr) -> sync_with_stdio(false);
    int n, m;
    cin >> n >> m;
    int ans = 0, ans2 = 0;
    vector <pair <int, int> > e;
    for (int i = 1; i <= m; i ++) {
        int u, v;
        cin >> u >> v;
        if (u == v) ans ++;
        else {
            e.emplace_back(u, v);
            e.emplace_back(v, u);
        }
    }
    sort (e.begin(), e.end());
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

#include <bits/stdc++.h>

using namespace std;
using i64 = long long;

int main() {
    cin.tie(nullptr) -> sync_with_stdio(false);
    int n, m;
    cin >> n >> m;
    int ans = 0, ans2 = 0;
    vector <pair <int, int> > e;
    for (int i = 1; i <= m; i ++) {
        int u, v;
        cin >> u >> v;
        if (u == v) ans ++;
        else {
            e.emplace_back(u, v);
            e.emplace_back(v, u);
        }
    }
    sort (e.begin(), e.end());
    for (int i = 0; i < e.size();) {
        int j = i + 1;
        while (e[i] == e[j] && j < e.size()) ans2 ++, j ++;
        i = j;
    }
    cout << ans2 / 2 + ans << '\n';
    return 0;
}

Submission Info

Compile Error

Main.cpp: In function ‘int main()’:
Main.cpp:22:23: warning: comparison of integer expressions of different signedness: ‘int’ and ‘std::vector<std::pair<int, int> >::size_type’ {aka ‘long unsigned int’} [-Wsign-compare]
   22 |     for (int i = 0; i < e.size();) {
      |                     ~~^~~~~~~~~~
Main.cpp:24:34: warning: comparison of integer expressions of different signedness: ‘int’ and ‘std::vector<std::pair<int, int> >::size_type’ {aka ‘long unsigned int’} [-Wsign-compare]
   24 |         while (e[i] == e[j] && j < e.size()) ans2 ++, j ++;
      |                                ~~^~~~~~~~~~

Judge Result