#include <stdio.h>

int main()
{
    char a;
    scanf("%c", &a);
    for (int i = 0; i < 3; i++)
    {
        for (int j = 0; j <= 3 - i; j++)
        {
            putchar(' ');
        }
        for (int j = 0; j <= 2 * i; j++)
        {
            putchar(a);
        }
        putchar('\n');
    }
    return 0;
}

测试点信息

Wrong Answer.wrong answer On line 1 column 3, read (ASCII 32), expected *.

本地编译都能输出正确答案