Submission #2855566

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Source Code Expand

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

typedef long long int int64;

#define MAX(a,b) ((a)>(b)?(a):(b))
#define MIN(a,b) ((a)<(b)?(a):(b))
#define ABS(a) ((a)>(0)?(a):-(a))

void run(void){
  int n,s,t;
  scanf("%d%d%d",&n,&s,&t);
  int k=0;
  while(t>s){
    k++;
    t>>=1;
  }
  printf("%d\n",t==s?k:-1);
}

int main(void){
  run();
  return 0;
}

Submission Info

Compile Error

./Main.c: In function ‘run’:
./Main.c:13:3: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d%d",&n,&s,&t);
   ^

Judge Result