usaco Chapter 3 section 3.2 Feed Ratios

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/*
ID: niepeng1
LANG: C++
TASK:ratios

这题太水，无话可说。
*/
#include <iostream>
using namespace std;
FILE *in,*out;

int dest[3];
int map[3][3];
int way[3];

void read()
{
int i;
fscanf(in,"%d %d %d",&dest[0],&dest[1],&dest[2]);
for(i=0;i<3;i++)
  fscanf(in,"%d %d %d",&map[i][0],&map[i][1],&map[i][2]);
return;
}
int main()
{
int i,j,k,tem1,tem2;
    in=fopen("ratios.in","r");
    out=fopen("ratios.out","w");
    read();
for(i=0;i<100;i++)
  for(j=0;j<100;j++)
   for(k=0;k<100;k++)
   {
    if(i==0&&j==0&&k==0)
     continue;
    way[0]=map[0][0]*i+map[1][0]*j+map[2][0]*k;
    if(way[0]%dest[0]==0)
     tem1=way[0]/dest[0];
    else
     continue;
    way[1]=map[0][1]*i+map[1][1]*j+map[2][1]*k;
    if(way[1]!= tem1*dest[1] )
     continue;
    way[2]=map[0][2]*i+map[1][2]*j+map[2][2]*k;
    if(way[2] == tem1*dest[2])
    {
     fprintf(out,"%d %d %d %d/n",i,j,k,tem1);
     return 0;
    }

}

fprintf(out,"NONE/n");
fclose(in);
fclose(out);
return 0;
}