Submission #2981449

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Source Code Expand

#include <cstdio>

int n, s, t;
int city[101] = {0};

int main(){

  scanf("%d", &n);
  scanf("%d%d", &s, &t);
  city[s]++;
  city[t]++;
  scanf("%d", &n);
  for(int i = 0; i < n; i++){
    scanf("%d", &s);
    city[s]++;
  }

  bool can = true;

  for(int i = 0; i < 101; i++){
    if(city[i] >= 2)
      can = false;
  }

  if(can)
    printf("YES\n");
  else
    printf("NO\n");
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:8:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &n);
                  ^
./Main.cpp:9:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d", &s, &t);
                        ^
./Main.cpp:12:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &n);
                  ^
./Main.cpp:14:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &s);
                    ^

Judge Result