题干

代码

#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
#include<vector>
#include<algorithm>
#include<map>
using namespace std;int main() {char str[200] = { 0 };scanf("%s", str);map<char, vector<int>> timesMap;//记录每个字符出现的位置和次数vector<char> charSeq; //记录每个字符出现的先后顺序for (int i = 0; str[i] != '\0'; i++){timesMap[str[i]].push_back(i);//如果是第一次出现if (timesMap[str[i]].size() == 1) {charSeq.push_back(str[i]);}}vector<char>::iterator seqIt;for (seqIt = charSeq.begin(); seqIt != charSeq.end(); seqIt++) {if (timesMap[*seqIt].size() > 1) {vector<int>::iterator posIt = timesMap[*seqIt].begin();printf("%c:%d", *seqIt, *posIt);for (posIt = timesMap[*seqIt].begin()+1; posIt!=timesMap[*seqIt].end(); posIt++){printf(",%c:%d", *seqIt, *posIt);}printf("\n");}}
}