1. 练习3-3 统计学生平均成绩与及格人数

#include
#include
 
int main(int argc, char* argv[])
{
	int N = 0, i = 0, sum = 0, count = 0;
	double average = 0;
	scanf_s("%d", &N);
	if (N) {//判断是否输入正确
		int* score = (int*)malloc(N * sizeof(int));
		int* p = score;
		for (i = 0;i < N;i++, p++) {
			scanf_s("%d", p);
			sum += *p;
			if (*p >= 60) {
				count++;
			}
		}
		average = (float)sum / N;
		printf("average = %.1fn", average);
		printf("count = %d", count);
		free(score);
	}
	return 0;
}

结果显示正常但是看不懂PTA上的报错信息：

错误提示：