Submission #1871358

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Source Code Expand

#include <cstdio>
long long n, s, a, b;
int main() {
	freopen("input.txt", "r", stdin);
	scanf("%d", &n);
	while(n--) {
		scanf("%d", &a);
		if(!a) b=0;
		b += a;
		s += b/2;
		b %= 2;
	}
	printf("%lld", s);
	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:5:16: warning: format ‘%d’ expects argument of type ‘int*’, but argument 2 has type ‘long long int*’ [-Wformat=]
  scanf("%d", &n);
                ^
./Main.cpp:7:17: warning: format ‘%d’ expects argument of type ‘int*’, but argument 2 has type ‘long long int*’ [-Wformat=]
   scanf("%d", &a);
                 ^
./Main.cpp:4:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result]
  freopen("input.txt", "r", stdin);
                                  ^
./Main.cpp:5:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
                 ^
./Main.cpp:7:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &a);
                  ^

Judge Result