解法:
#include<iostream>
using namespace std;
int arr[100][100];
int main() {
int vertex, edge;
cin >> vertex >> edge;
int i, j;
while (edge--) {
cin >> i >> j;
arr[i][j] = 1;
}
for (int i = 0; i < vertex; i++) {
int sum = 0;
for (int j = 0; j < vertex; j++) {
sum += arr[i][j];
}
cout << sum << endl;
}
return 0;
}