求解（指针没学明白）

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Answer 1

 

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#include <iostream>

using namespace std;

#define STU_SIZE	5


struct Student {
	int num;
	char name[10];
	float score[3];
};


void avr_max(Student *stu);
void print(Student *stu);


int main() {
	Student stu[STU_SIZE];

	for (int i = 0; i < STU_SIZE; i++) {
		cout << "请输入第" << i + 1 << "名学生的号码：" << endl;
		cin >> stu[i].num;

		cout << "请输入第" << i + 1 << "名学生的名字：" << endl;
		cin >> stu[i].name;

		cout << "请输入第" << i + 1 << "名学生的三科分数：" << endl;
		for (int k = 0; k < 3; k++) {
			cin >> stu[i].score[k];
		}
	}


	avr_max(stu);
	print(stu);

	return 0;
}


void avr_max(Student *stu) {
	double avg[STU_SIZE] = { 0 };

	// 计算平均分，并保存再avg数组中
	for (int i = 0; i < STU_SIZE; i++) {
		avg[i] = 0.0;
		for (int j = 0; j < 3; j++) {
			avg[i] += stu[i].score[j];
		}

		avg[i] /= 3;	// 计算平均分

	}

	int index = 0;
	double max = avg[0];
	for (int k = 1; k < STU_SIZE; k++) {
		if (max < avg[k]) {
			max = avg[k];
			index = k;
		}
	}

	cout << STU_SIZE << "名学生平均分最高的是：" << endl;
	cout << "编号：" << stu[index].num << "\t" << "姓名：" << stu[index].name << "\t" << "平均分成绩：" << avg[index] << endl;
}

void print(Student *stu) {

	cout << endl <<  STU_SIZE << "名学生的信息：" << endl;
	
	for (int i = 0; i < STU_SIZE;  i++) {
		cout << "编号：" << stu[i].num << "\t" << "姓名：" << stu[i].name << "\t";
		
		for (int j = 0; j < 3; j++) {
			cout << "第" << j + 1 << "科成绩：" << stu[i].score[j] << "\t";
		}

		cout << endl;
	}
}