Submission #29349

#	Time	Username	Problem	Language	Result	Execution time	Memory
29349		tlwpdus	Untitled (POI11_imp)	C++11	100 / 100	1676 ms	39560 KiB

Main

#include <bits/stdc++.h>

using namespace std;

int n, m;
int mat[3100][3100];
bool die[3100];

int main() {
    int i, j;

    scanf("%d%d",&n,&m);
    for (i=0;i<m;i++) {
		int a, b;
		scanf("%d%d",&a,&b); --a; --b;
		mat[a][b] = mat[b][a] = 1;
    }
    for (i=0;i<n;i++) {
		for (j=0;j<n;j++) {
			if (i==j) continue;
			if (die[i]||die[j]) continue;
			if (!mat[i][j]) die[i] = die[j] = 1;
		}
    }
    int cnt = 0;
    for (i=0;i<n;i++) {
		if (!die[i]) {
			printf("%d ",i+1);
			cnt++;
		}
		if (cnt==n/3) break;
    }
    printf("\n");

    return 0;
}

Compilation message (stderr)

imp.cpp: In function 'int main()':
imp.cpp:12:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d",&n,&m);
                        ^
imp.cpp:15:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d",&a,&b); --a; --b;
                      ^

• Subtask 1: 9 / 9
• Subtask 2: 9 / 9
• Subtask 3: 9 / 9
• Subtask 4: 9 / 9
• Subtask 5: 9 / 9
• Subtask 6: 9 / 9
• Subtask 7: 9 / 9
• Subtask 8: 9 / 9
• Subtask 9: 9 / 9
• Subtask 10: 9 / 9
• Subtask 11: 10 / 10