sgu551 Preparing Problem

题目链接：http://acm.sgu.ru/problem.php?contest=0&problem=551

呵呵，题目读的没错，可惜理解错了．．＝＝

 #include <cstdio>
 #include <cstdlib>
 #include <cstring>
 #include <algorithm>
 #define LL long long
 using namespace std;
 int n, t1, t2;
 int gcd(int a, int b) {
     return b ==  ? a : (gcd(b, a%b));
 }
 int exg(int a, int b) {
     return a/gcd(a,b)*b;
 }
 int main(void) {
     //freopen("in.txt", "r", stdin);
     while (~scanf("%d%d%d", &n, &t1, &t2)) {
         int k = exg(t1, t2), s = k/t1 + k/t2, One = n/s, r = n%s, base = One*k,
                 Min = , cnt = , i, j;
         if (t1>t2) swap(t1,t2);
         //printf("s = %d r = %d\n", s, r);
         if (r)
         for (i = , j = ; i+j <= s;) {
             if (cnt >= r) break;
             if (i * t1 < j * t2) Min=i*t1, i++, cnt++;
             else if(i*t1 > j*t2) Min=j*t2, j++, cnt++;
             else Min=j*t2, j++, i++, cnt+=;
             if (cnt >= r) break;
         }
         if ( (i-)*t1!=(j-)*t2 && Min == (i-) * t1) cnt++, Min = max(Min, j*t2);
         else if ( (i-)*t1!=(j-)*t2 && Min == (j-) * t2) cnt++, Min = max(Min, i*t1);
         //printf("cnt = %d\n", cnt);
         printf("%d %d\n", cnt+s*One, base+Min);
     }
     return  ;
 }

这场比赛就栽在了这道题目上面，从开场到结束前５分钟．．．