Submission #845413

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Source Code Expand

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

int main(){
	int N;
	int* A;
	int i;

	int pairs=0;

	int cur;

	scanf("%d", &N);
	A = (int*)malloc(sizeof(int) * N);

	for(i=0; i<N; i++){
		scanf("%d", &A[i]);
	}

	for(i=0; i<N-1; i++){
		while(A[i] > 0 && A[i+1] > 0){
			pairs++;
			A[i]--;
			A[i+1]--;
		}
		pairs += A[i] / 2;
		A[i] %= 2;
	}

	printf("%d\n", pairs);

	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:13:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &N);
                 ^
./Main.cpp:17:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &A[i]);
                     ^

Judge Result