USACO Section 3.2: Feed Ratios

直接暴力搜

 /*
 ID: yingzho1
 LANG: C++
 TASK: ratios
 */
 #include <iostream>
 #include <fstream>
 #include <string>
 #include <map>
 #include <vector>
 #include <set>
 #include <algorithm>
 #include <stdio.h>
 #include <queue>
 #include <cstring>
 #include <cmath>
 #include <list>
 #include <cstdio>
 #include <cstdlib>

 using namespace std;

 ifstream fin("ratios.in");
 ofstream fout("ratios.out");

 struct node {
     int x, y, z;
     node(int a, int b, int c) : x(a), y(b), z(c) { }
     node() : x(), y(), z() { }
 };

 ;

 //int f[101][101][101];

 int main()
 {
     node target, s[];
     fin >> target.x >> target.y >> target.z;
     ; i < ; i++)
         fin >> s[i].x >> s[i].y >> s[i].z;
     /*for (int i = 0; i < 101; i++)
         for (int j = 0; j < 101; j++)
             for (int k = 0; k < 101; k++)
                 f[i][j][k] = inf;*/
     int minnum = inf;
     int recx, recy, recz;
     ; i < ; i++) {
         ; j < ; j++) {
             ; k < ; k++) {
                 ].x+j*s[].x+k*s[].x;
                 ].y+j*s[].y+k*s[].y;
                 ].z+j*s[].z+k*s[].z;
                  || xx%target.x == ) && (target.y ==  || yy%target.y == ) && (target.z ==  || zz%target.z == ) && xx*target.y == yy*target.x && yy*target.z == zz*target.y) {
                     int tmp = inf;
                     if (target.x && xx) tmp = xx/target.x;
                     else if (target.y && yy) tmp = yy/target.y;
                     else if (target.z && zz) tmp = zz/target.z;
                     if (tmp < minnum) {
                         minnum = tmp;
                         recx = i, recy = j, recz = k;
                     }
                 }
             }
         }
     }
     if (minnum < inf) fout << recx << " " << recy << " " << recz << " " << minnum << endl;
     else fout << "NONE" << endl;

     ;
 }