请问一下大家，要用C语言编写

Question

各位同行们，信息课说我们要按照他的要求编写这个程序。可是我不知道怎么编写

Answer 1

先分割字符串，然后按首字母排序

#pragma warning(disable:4996)
#include<stdio.h>
#include<stdlib.h>
#include<string.h>

//冒泡排序
void sort(char** str, int row) {
    for (int i = 0; i < row-1; i++) {
        for (int j = row-1; j > i; j--) {
            if (str[j][0] < str[j-1][0]) {
                char* temp = str[j];
                str[j] = str[j-1];
                str[j-1] = temp;
            }
        }
    }
    for (int i = 0; i < row; i++) {
        printf("%s\n", str[i]);
    }
}

//分割字符串
char** splitStr(char* str, int* row) {
    char** res = (char**)malloc(sizeof(char*) * 100);
    char tempStr[60];
    *row = 0;
    int s = 0, e = 0;
    while (*(str + e) != '\0') {
        if (*(str + e) == ' ') {
            tempStr[e - s] = '\0';
            res[*row] = (char*)malloc(e - s + 1);
            char* temp = tempStr;
            strcpy(res[*row], temp);
            *row += 1;
            s = e + 1;
        }
        else {
            tempStr[e - s] = *(str + e);
        }
        e++;
    }
    res[*row] = (char*)malloc(e - s + 1);
    char* temp = tempStr;
    strcpy(res[*row], temp);
    *row += 1;
    return res;
}

int main() {
    char* str = "how are you";
    int row = 0;
    char** res = splitStr(str, &row);
    sort(res, row);
}