UVa 11541 Decoding

Code：

#include<stdio.h>

#include<stdlib.h>

#include<iostream>

#include<algorithm>

#include<string.h>

#include<map>

#include<vector>

using namespace std;

typedef pair<char,int> ci;

int main()

{

    int cas;

    cin>>cas;

    string line;

    getline(cin,line);

    for(int cc=1;cc<=cas;cc++)

    {

        vector<ci> v;

        string str;

        int n=0;

        char ch=' ';

        getline(cin,str);

        for(int i=0;i<str.size();i++)

        {

            if(i==0) ch=str[i];

            else

            {

                if(str[i]<='Z'&& str[i]>='A')

                {

                    v.push_back(ci(ch,n));

                    ch=str[i];

                    n=0;

                }

                else n=n*10+str[i]-'0';

            }

            if(i==str.size()-1) v.push_back(ci(ch,n));

        }

        printf("Case %d: ",cc);

        for(int i=0;i<v.size();i++)

        {

            ci tmp=v[i];

            for(int j=0;j<tmp.second;j++)

            {

                cout<<tmp.first;

            }

        }

        cout<<endl;

    }

    return 0;

}