1021. 个位数统计 (15)

#include <iostream>
#include <string>
using namespace std;

int main()
{
    string Num;
    cin>>Num;
    int count[10] ={0};
    for ( int i = 0 ; i < Num.length() ; i++){
        int tmp = Num[i] - '0';
        switch(tmp){
            case 0 : count[0]++;break;
            case 1 : count[1]++;break;
            case 2 : count[2]++;break;
            case 3 : count[3]++;break;
            case 4 : count[4]++;break;
            case 5 : count[5]++;break;
            case 6 : count[6]++;break;
            case 7 : count[7]++;break;
            case 8 : count[8]++;break;
            case 9 : count[9]++;break;
        }
    }
    for ( int i = 0 ; i < 10 ; i++){
        if ( count[i] != 0){
            cout<<i<<":"<<count[i]<<endl;
        }
    }

    return 0;
 }