题解 | 简写单词

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

int main() {
    char *str = (char *)malloc(sizeof(char) * 5009);
    char *fruit = (char *)malloc(sizeof(char) * 5009);
    if(str == NULL){
        printf("Failed mallloc!\n");
        return -1;
    }
    fgets(str, 5009, stdin);
    int flag = 1;
    int j = 0;
    for(int i = 0; i < strlen(str); i ++){
       if(flag == 1){
        char c;
        if(str[i] >= 'a' && str[i] <= 'z'){
             c = str[i] - 32;
        }
        else{
             c = str[i];
        }
        fruit[j] = c;
        j ++;
       }
       if(str[i] == ' '){
        flag = 1;
        continue;
       }
       
       flag = 0;

    }
    fruit[j] = 0;
    printf("%s\n",fruit);
    free(str);
    free(fruit);
    return 0;
}