NOI-1.1-08-字符三角形

#include <iostream>
#include <algorithm>
#include <stdio.h>
#include <string>
#include <ctype.h>

using namespace std;

int main()  {
    char a;
    scanf("%c", &a);
    for(int i = 1; i <=3; i++)  {
        int num = 2*i-1;
        int kong = (5-num)/2;
        for(int j = 1; j <= kong; j++)  cout << " ";
        for(int j = 1; j <= num; j++)   cout << a;
        for(int j = 1; j <= kong; j++)  cout << " ";
        cout << endl;
    }

    return 0;

}