pat-bl-1021

pat-bl-1021

2016-12-18

• 哈希表的入门小应用，很简单的一题

/** *pat-bl-1021 *2016-12-18 *C version * */#include<stdio.h>int main(){  char tmp;  int hs[10] = {0};  freopen("in.txt", "r", stdin);  while (scanf("%c", &tmp) != EOF)  {    hs[tmp - '0']++;  }  for(int i = 0;i < 10;i++)  {    if(hs[i] != 0)    {      printf("%d:%d\n", i, hs[i]);    }  }}

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