题解 | #字符串最后一个单词的长度#

利用哈希解决

#include <stdio.h>

int main()
{
    int val[500] = {0};
    int n = 0;
    int numArr[500] = {0};
    int num = 0;
    while(scanf("%d", &n) != EOF) {
        for(int i = 0;i < n;i++) {
            scanf("%d", &num);
            if (val[num] == 0) {
                val[num] = 1;
            }
        }
        for (int i = 0;i < 500; i++) {
            if(val[i] == 1) {
                val[i] = 0;
                printf("%d\n", i);
            }
        }
        //printf("\n");
    }
}