简单的嵌套循环

AC代码：

#include <bits/stdc++.h>
using namespace std;
int ans;
int main()
{
    for(int i=1;i<=12;i++)
    {
        for(int j=1;j<=50;j++)
        {
            for(int k=1;k<=34;k++)
            {
                if(9*i+j+k==100&&i*2+j*2+k*4==100)
                {
                    cout<<i<<" "<<j<<" "<<k<<endl;
                    ans++;
                }
            }
        }
    }
    cout<<ans;
    return 0;
}

#include <iostream>
#include <stdio.h>
using namespace std;
int main()
{
    int x,y,z,i=0;
    for(x=0;x<=11;x += 1)
    {
        for(y=0;y<=50;y += 1)
        {
            for(z=0;z<=25;z += 1)
            {
                if((9*x+y+z==100) && (x+y+2*z==50))
                {
                    printf("%d %d %d\n",x,y,z);
                    i += 1;
                }
            }
        }
    }
    cout << i;
    return 0;
}//已AC

输出:

7 31 6

8 14 14

2

#include<bits/stdc++.h>
using namespace std;
int num;
int main()
{
    for(int i=1;i<=11;i++)
    {
        for(int j=1;j<=80;j++)
        {
            for(int k=1;k<=40;k++)
            {
                if(i*2+j*2+k*4==100&&i*9+j+k==100)
                {
                    cout<<i<<" "<<j<<" "<<k<<endl;
                    num++;
                }
            }
        }
    }
    cout<<num;
    return 0;
}

#include <iostream> #include <cmath> using namespace std; int main() { int num = 0; for (int i = 0; i <= 11; i++)//鸟 { for (int j = 0; j <= 50; j++)//只因 { for (int k = 0; k <= 25; k++)//兔 { if (9 * i + j + k == 100 && 2 * i + 2 * j + 4 * k == 100) { cout << i << " " << j << " " << k << endl; num++; } } } } cout << num; return 0; }

#include <bits/stdc++.h>
using namespace std;
int ans;
int main(){
	for (int i=1;i<=15;i++){
		for (int j=1;j<=50;j++){
			for (int k=1;k<=25;k++){
				if (i*9+j+k==100&&i*2+j*2+k*4==100){
					cout<<i<<" "<<j<<" "<<k<<endl;
					ans++;
				}
			}
		}
	}
	cout<<ans;
	return 0;
}