http://acm.hdu.edu.cn/showproblem.php?pid=1020大水題一個不解釋

#include<string>#include<cstdio>#include<map>#include<algorithm>#include<string.h>#include<cmath>#include<iostream>using namespace std;int main(){ int t; scanf("%d",&t); string str;  while(t--)  {  map<char,int>M;       cin>>str;for(int i=0;i<str.size();i++){  char p=str[i];  int kk=0;  while( ++i < str.size() && p==str[i] )kk++;  i--;  if(kk==0)  {   printf("%c",p);  }else  {  printf("%d%c",kk+1,p);  }}printf("\n");  }return 0;}