문제
풀이
#include <iostream>
using namespace std;
bool solve(void) {
int n, m; cin >> n >> m;
for (int i=0; i<m; i++) {
int u, v; cin >> u >> v;
}
return n >= m;
}
int main(void) {
ios::sync_with_stdio(false);
cin.tie(nullptr);
cout << (solve() ? "Yes" : "No");
return 0;
}