제출 #203119

#제출 시각아이디문제언어결과실행 시간메모리
203119MKopchevUntitled (POI11_imp)C++14
100 / 100
1430 ms41328 KiB
#include<bits/stdc++.h> using namespace std; const int nmax=3e3+42; bool edge[nmax][nmax]; int n,m; bool in[nmax]; int main() { scanf("%i%i",&n,&m); int u,v; for(int i=1;i<=m;i++) { scanf("%i%i",&u,&v); edge[u][v]=1; edge[v][u]=1; } for(int i=1;i<=n;i++)in[i]=1; for(int i=1;i<=n;i++) for(int j=i+1;j<=n;j++) if(edge[i][j]==0&&in[i]&&in[j]) { in[i]=0; in[j]=0; } int out=n/3; for(int i=1;i<=n;i++) if(in[i]) { printf("%i ",i); out--; if(out==0)break; } printf("\n"); return 0; }

컴파일 시 표준 에러 (stderr) 메시지

imp.cpp: In function 'int main()':
imp.cpp:10:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%i%i",&n,&m);
     ~~~~~^~~~~~~~~~~~~~
imp.cpp:14:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%i%i",&u,&v);
         ~~~~~^~~~~~~~~~~~~~
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