Submission #1623608

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Source Code Expand

# include<stdio.h>
# include<stdlib.h>

int min(int *data, int length);
int belong_in(int i, int* ng, int length);

int main(int argc, char* argv[])
{
  int n, ng[3];
  int i;
  int* data;
  int* p;
  int max_trial = 100;
  
  scanf("%d", &n);
  for(i = 0; i < 3; ++i){
    scanf("%d", ng + i);
    if(*(ng + i) == n){
      printf("NO\n");
      return 0;
    }
  }
  data = (int *) malloc(n + 3);
  *(data + n + 2) = max_trial;
  *(data + n + 1) = max_trial;
  *(data + n) = 0;
  p = data + n - 1;
  for(i = n - 1; i >= 0; --i, --p){
    if(belong_in(i, ng, 3)){
      *p = max_trial;
    }else{
      *p = min(p + 1, 3) + 1;
    }
    if(*p > max_trial){
      printf("NO\n");
      free(data);
      return 0;
    }
  }

  printf("YES\n");
  free(data);
  return 0;
}

int min(int *data, int length)
{
  int min = *data;
  int* p = data + 1;
  int i;
  for(i = 1; i < length; ++i, ++p){
    min = min > *p ? *p : min;
  }
  return min;
}

int belong_in(int i, int* ng, int length)
{
  int j;
  int* p = ng;
  for(j = 0; j < length; ++j, ++p){
    if(i == *p){
      return 1;
    }
  }
  return 0;
}

Submission Info

Compile Error

./Main.c: In function ‘main’:
./Main.c:15:3: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &n);
   ^
./Main.c:17:5: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", ng + i);
     ^

Judge Result