ZOJ 3867 Earthstone: Easy Version

 1 #include <iostream>
 2 #include <cstring>
 3 #include <string>
 4 #include <cstdio>
 5 #include <vector>
 6 #include <cmath>
 7 #include <algorithm>
 8 using namespace std;
 9 int A1, H1, A2, H2;
10 int T;
11 int main(){
12     scanf("%d", &T);
13     while(T--){
14         cin>>A1>>H1>>A2>>H2;
15         if(A1 == 0) cout<<"Invalid"<<endl;
16         else if(A2 < H1 && H2 <= A1){
17             printf("%d %d Discard\n", A1, H1-A2);
18         }
19         else if(A1 < H2 && H1 <= A2){
20             printf("Discard %d %d\n", A2, H2-A1);
21         }
22         else if(A1 >= H2 && A2  >= H1){
23             printf("Discard Discard\n");
24         }
25         else printf("%d %d %d %d\n", A1, H1-A2, A2, H2-A1);
26     }
27    return 0;
28 }