Submission #100975

#	Time	Username	Problem	Language	Result	Execution time	Memory
100975		KLPP	Wand (COCI19_wand)	C++14	7 / 70	53 ms	2304 KiB

wand

#include<bits/stdc++.h>

using namespace std;
typedef long long int lld;

int main(){
  int n,m;
  scanf("%d %d",&n,&m);
  int victory[n];
  int fail[n];
  for(int i=0;i<n;i++){
    victory[i]=0;
    fail[i]=0;
  }
  for(int i=0;i<m;i++){
    int x,y;
    scanf("%d %d",&x,&y);
    x--;y--;
    victory[x]++;
    fail[y]++;
  }
  for(int i=0;i<n;i++){
    if(victory[i]>0 || (victory[i]+fail[i]==0)){
      cout<<1;
    }else cout<<0;
  }cout<<endl;
  return 0;
}

Compilation message (stderr)

wand.cpp: In function 'int main()':
wand.cpp:8:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d",&n,&m);
   ~~~~~^~~~~~~~~~~~~~~
wand.cpp:17:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d",&x,&y);
     ~~~~~^~~~~~~~~~~~~~~

• Subtask 1: 7 / 70