Submission #2870382

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Source Code Expand

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

int main(void){
    long long a,b,c,k;
    scanf("%lld%lld%lld%lld",&a,&b,&c,&k);
    if (k%2==0){
        printf("%lld\n",a-b);
    } else {
        printf("%lld\n",b-a);
    }
	return 0 ;
}

Submission Info

Compile Error

./Main.c: In function ‘main’:
./Main.c:9:5: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld%lld%lld%lld",&a,&b,&c,&k);
     ^

Judge Result