Submission #999535

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Source Code Expand

#include<cstdio>
#include<cstring>
#include<cstdlib>

int main(void){
	int x;
	long long s = 1;
	scanf("%d", &x);
	for (int i = 0; i < x + 2; i++)s = s * 2;
	printf("%lld\n",s-2);
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:8:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &x);
                 ^

Judge Result