Question

C++ 求不定方程: X1+X2+X3+X4+X5=20 其中，1<=X1<=6,0<=X2<=7,4<=X3<=8,2<=X4<=6,0<=X5<=20，且均整数

Answer 1

程序如下：
#include <stdio.h>
void main()
{
int i, j, k, m, n;
for (i = 1; i < 7; i++)
{
for (j = 0; j < 8; j++)
{
for (k = 4; k < 9; k++)
{
for (m = 2; m < 7; m++)
{
for (n = 0; n < 21; n++)
{
if (i + j + k + m + n == 20)
{
printf("X1=%d\nX2=%d\nX3=%d\nX4=%d\nX5=%d\n",i,j,k,m,n);
}
}
}
}
}
}
}
得到的结果很长，希望能对你有所帮助。