题解 | 简写单词

#include <stdio.h>

int main() {
    char shuzu[6000] = "";
    scanf("%[^\n]", shuzu);

    int jilu = 0;
    char jiushuzu[101] = "";
    for (int i = 0; shuzu[i] != '\0'; i++) {
        if (i == 0) {
            if (shuzu[i] >= 'A' && shuzu[i] <= 'Z') {
                jiushuzu[jilu++] = shuzu[i];
            }
            if (shuzu[i] >= 'a' && shuzu[i] <= 'z'){
                jiushuzu[jilu++] = shuzu[i] - 'a' + 'A';
            }
        }
        if (shuzu[i] == ' ') {
            if (shuzu[i + 1] >= 'A' && shuzu[i + 1] <= 'Z') {
                jiushuzu[jilu++] = shuzu[i + 1];
            }
            if (shuzu[i + 1] >= 'a' && shuzu[i + 1] <= 'z'){
                jiushuzu[jilu++] = shuzu[i + 1] - 'a' + 'A';
            }
        }
    }
    printf("%s", jiushuzu);
    return 0;
}