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");
		}
	}
}