http://acm.sdut.edu.cn/sdutoj/showproblem.php?pid=1470&cid=1142
View Code
1 #include<stdio.h> 2 int main() 3 { 4 int a, b, c, d, e, x, y; 5 int ming, maxg; 6 while(scanf("%d %d %d %d %d", &a, &b, &c, &d, &e)) 7 { 8 if(a==0&&b==0&&c==0&&d==0&&e==0)break; 9 if(c < 0) 10 ming = 0; 11 else 12 ming = c * b + 1; 13 maxg = d - e; 14 if(e <= 0) 15 x = y = 0; 16 else 17 x = a - maxg; 18 y = a - ming; 19 if(x > y) 20 printf("%d\n",-1); 21 else 22 printf("%d %d\n",x,y); 23 } 24 return 0; 25 }
总结： 注意细节； 讨论各种可能出现的情况
测试数据如下：
20 5 -1 1 1
20 5 -1 20 1
20 5 1 20 1
21 5 4 20 1
21 5 4 1 0
21 5 4 5 1
21 5 5 5 1
-10 5 4 5 4
10 5 4 3 1
55 4 2 10 1
10 1 11 5 1
1 1 0 0 0
1 1 -1 0 0
0 1 -1 0 0
0 0 0 0 0
/////////////////
20 20
1 20
1 14
-1
0 0
-1
-1
-1
-1
46 46
-1
0 0
0 1
0 0