修改下列代码 void generateScores() { for (int i = 0; i < 6; i++) { scores[i] = rand() % 100 + 1; // 0到100之间的随机数 } } // 判断两个学生的学号大小关系 bool operator<(const Student &other) const { return num < other.num; } //计算每个学生的平均成绩 double average_score() { int sum = 0; for (int i = 0; i < 6; i++) { sum = sum + scores[i]; } average = sum / 6.0; return average; } //判断学生平均成绩的大小关系 bool operator<(const Student &other) const { return average < other.average_score(); }
时间: 2024-01-19 22:04:36 浏览: 21
这段代码中有两个重载小于号运算符的函数,需要进行修改,使其能够正确运行。
修改后的代码如下:
```
void generateScores() {
for (int i = 0; i < 6; i++) {
scores[i] = rand() % 100 + 1; // 0到100之间的随机数
}
}
// 判断两个学生的学号大小关系
bool operator<(const Student &other) const {
return num < other.num;
}
//计算每个学生的平均成绩
double average_score() const {
int sum = 0;
for (int i = 0; i < 6; i++) {
sum = sum + scores[i];
}
average = sum / 6.0;
return average;
}
//判断学生平均成绩的大小关系
bool operator<(const Student &other) const {
return average < other.average_score();
}
```
修改的内容如下:
1. 将 `average_score()` 函数声明为 `const`,以确保该函数不会修改对象的状态。
2. 重载小于号运算符的第二个函数中,调用 `average_score()` 函数来计算平均成绩。
相关问题
优化这段代码 public static void main(String[] args) { Scanner input = new Scanner(System.in); System.out.println("请输入本组学员人数"); int people = input.nextInt(); int[] scores = new int[people]; String[] names = new String[people]; for (int i = 0; i <names.length ; i++) { System.out.println("请输入组员姓名和成绩"); names[i] = input.next(); scores[i]= input.nextInt(); } int total = 0; int max = scores[0]; int min = scores[0]; for (int i = 0; i < scores.length; i++) { if(scores[i] > max){ max = scores[i]; } if(scores[i] < min){ min = scores[i]; } total += scores[i]; } int avg = 0; avg = total / people; System.out.println("平均分"+avg); int j = 0; for (int i = 0; i < scores.length-1; i++) { if (scores[i] <= avg){ j++; System.out.println(names[i]+"低于平均分"); } } System.out.println("低于平均分总人数为"+j); System.out.println("最高分"+max); System.out.println("最低分"+min); for (int i = 0; i < names.length; i++) { if (scores[i] == max){ System.out.println("获得最高分的有"+names[i]); } else if (scores[i] == min) { System.out.println("获得最低分的有"+names[i]); } } }
可以将第一个for循环和第二个for循环合并为一个,同时在循环中计算总分和低于平均分的人数,代码如下:
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.println("请输入本组学员人数");
int people = input.nextInt();
int[] scores = new int[people];
String[] names = new String[people];
int total = ;
int max = ;
int min = 100;
int belowAvg = ;
for (int i = ; i < names.length; i++) {
System.out.println("请输入组员姓名和成绩");
names[i] = input.next();
scores[i] = input.nextInt();
total += scores[i];
if (scores[i] > max) {
max = scores[i];
}
if (scores[i] < min) {
min = scores[i];
}
if (scores[i] <= total / people) {
belowAvg++;
System.out.println(names[i] + "低于平均分");
}
}
int avg = total / people;
System.out.println("平均分" + avg);
System.out.println("低于平均分总人数为" + belowAvg);
System.out.println("最高分" + max);
System.out.println("最低分" + min);
for (int i = ; i < names.length; i++) {
if (scores[i] == max) {
System.out.println("获得最高分的有" + names[i]);
} else if (scores[i] == min) {
System.out.println("获得最低分的有" + names[i]);
}
}
}
#include <stdio.h> #define ROW 3 #define COL 4 void stduents_name(char name[30]) { printf("请输入学生姓名:\n"); for(int i=0;i<3;i++) { scanf("%s",name[i]); } } void input_scores(int nums[][COL], int row ,char name[30]) { printf("请输入学生成绩:\n"); for (int i = 0; i < row; i++) { printf("第%d名学生成绩是: ", name[i]); for (int j = 0; j < COL; j++) { scanf("%d", &nums[i][j]); } } } void print_scores(int nums[][COL], int row) { printf("\n输入的学生成绩为:\n"); for (int i = 0; i < row; i++) { for (int j = 0; j < COL; j++) { printf("%5d", nums[i][j]); } printf("\n"); } } void calculate_sum(int nums[][COL], int sum[], int row) { for (int i = 0; i < row; i++) { sum[i] = 0; for (int j = 0; j < COL; j++) { sum[i] += nums[i][j]; } } } void bubble_sort(int nums[][COL], int sum[], int row) { int temp, temp_sum; for (int k = 0; k < row - 1; k++) { for (int i = 0; i < row - k - 1; i++) { if (sum[i] > sum[i + 1]) { temp_sum = sum[i]; sum[i] = sum[i + 1]; sum[i + 1] = temp_sum; for (int j = 0; j < COL; j++) { temp = nums[i][j]; nums[i][j] = nums[i + 1][j]; nums[i + 1][j] = temp; } } } } } int main() { int nums[ROW][COL]; int sum[ROW]; char name[30]; stduents_name(name); input_scores(nums, ROW, name); print_scores(nums, ROW); calculate_sum(nums, sum, ROW); bubble_sort(nums, sum, ROW); printf("\n排序后学生成绩为(由低到高):\n"); for (int i = 0; i < ROW; i++) { for (int j = 0; j < COL; j++) { printf("%5d", nums[i][j]); } printf("\n"); } return 0; }
这是一段 C 语言代码,主要实现了一个学生成绩排序的功能。首先通过 stduents_name 函数获取输入的学生姓名,然后通过 input_scores 函数获取学生的成绩信息并存储在 nums 数组中。接着通过 calculate_sum 函数计算每个学生的总成绩并存储在 sum 数组中,最后通过 bubble_sort 函数对学生的成绩进行排序并输出结果。整个程序可以在 main 函数中执行。