C语言打印正三角形，使用/\_

如图，如何用C语言打印此三角形？

// Q703885.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"


int _tmain(int argc, _TCHAR* argv[])
{
    int size = 2;
    int level = 3;
    for (int i = 0; i < level; i++)
    {
        for (int k = 0; k < size; k++)
        {
            for (int j = 0; j < (level - i) * size - k - 1; j++)
                printf(" ");
            if (k != size - 1)
            {
                for (int j = 0; j <= i; j++)
                {
                    printf("/");
                    for (int l = 0; l < k * 2; l++)
                        printf(" ");
                    printf("\\");
                    for (int l = 0; l < (size - k - 1) * 2; l++)
                        printf(" ");
                }
            }
            else
            {
                for (int j = 0; j <= i; j++)
                {
                    printf("/");
                    for (int l = 0; l < (size - 1) * 2; l++)
                        printf("_");
                    printf("\\");
                }
            }
            printf("\n");
        }       
    }
    return 0;
}

如果问题解决，麻烦点下我回答右边的采纳，谢谢

 #include<stdio.h>
int main() {
    int level, size;
    printf("Enter level and size :");
    scanf("%d%d", &level, &size);
    int left, right,
        width = size * 2;  //小三角形的宽度
    for (int i = 0; i < level*size; i++) {
        for (int j =level * size -1-i; j >= 0; j--)     //输出每行前的空格
            printf(" ");
        left = 0;       //行左边界（可省略）
        right = 2 * i+1;  //行右边界
        for (int j = left; j <= right; j++) {
            if (j%width == 0)                  //与左边界相比每隔width个打印"/"
                printf("/");
            else if ((right - j) % width == 0) //与右边界相比每隔width个打印"\"
                printf("\\");
            else if ((i + 1) % size == 0)      //每隔size行不打印空格，打印"_"
                printf("_");
            else                               //补上空格
                printf(" ");
        }
        printf("\n");
    }
    return 0;
}