统计字符串中重复的字符个数并输出

//输出字符串各个字符的个数
/*
对重复的字符将其下标存放在vector中，使用unique函数只保存一份重复字符的数字
通过下标查找到相应的字符，从map中取出对应的统计数字
*/

include “iostream”

include “windows.h”

include “string”

include “map”

include “vector”

include “algorithm”

include “iterator”

using namespace std;

int main()
{

vector<int> coll,coll1;string str;int len;int nn;char word;cin>>str;int index;map<char,int> counts;len=str.length();int i;vector<int>::iterator pos;for(i=0; i<len; i++){    word=str.at(i);    ++counts[word];//将输入的字符串中的字符挨个输入到map容器}for(i=0; i<len; i++){    char cha=str.at(i);    index=str.find(cha);    map<char,int>::iterator num(counts.find(cha));//开始统计计数    if(num->second>1)    {        coll.push_back(index);    }}sort(coll.begin(),coll.end());pos=unique(coll.begin(),coll.end());//copy(coll.begin(),pos,ostream_iterator<int>(cout, " "));copy(coll.begin(),pos,back_inserter(coll1));//copy(coll1.begin(),coll1.end(),ostream_iterator<int>(cout," "));for(i=0; i<coll1.size(); i++){    char ch=str.at(coll.at(i));    nn=str.find(ch);    map<char,int>::iterator num1(counts.find(ch));    cout<<num1->first<<" ";    cout<<num1->second<<endl;}cout<<endl;system("pause");return 0;

}