bc #52 div 2 A ||hdoj5417 Victor and Machine (模拟)

 1/*************************************************************************
 2	> File Name: code/bc/#52/1001.cpp
 3	> Author: 111qqz
 4	> Email: rkz2013@126.com 
 5	> Created Time: 2015年08月22日 星期六 18时51分44秒
 6 ************************************************************************/
 7#include<iostream>
 8#include<iomanip>
 9#include<cstdio>
10#include<algorithm>
11#include<cmath>
12#include<cstring>
13#include<string>
14#include<map>
15#include<set>
16#include<queue>
17#include<vector>
18#include<stack>
19#include<cctype>
20#define y1 hust111qqz
21#define yn hez111qqz
22#define j1 cute111qqz
23#define ms(a,x) memset(a,x,sizeof(a))
24#define lr dying111qqz
25using namespace std;
26#define For(i, n) for (int i=0;i<int(n);++i)  
27typedef long long LL;
28typedef double DB;
29const int inf = 0x3f3f3f3f;
30const int N=1E6+7;
31int main()
32{
33  #ifndef  ONLINE_JUDGE 
34    freopen("in.txt","r",stdin);
35  #endif
36    int x,y,w,n;
37    while (scanf("%d%d%d%d",&x,&y,&w,&n)!=EOF){
38	int num = 1;
39	int cnt;
40	int q;
41	bool on = true;
42	bool flag = false;
43	int t = 0;
44	while (t<N&&!flag){
45	    if (num==n) {
46		cout<<t<<endl;
47		flag = true;
48		break;
49	    }
50	    cnt = t+x;
51	    q =  0;
52	    while (t<cnt){
53		q++;
54		t++;
55		if (q%w==0){
56//		     cout<<"aaat:"<<t<<endl;
57		     num++;
58		}
59	    if (num == n){
60		cout<<t<<endl;
61		flag = true;
62		break;
63	    }
64	    }
65	    on = false;
66	    t = t + y;
67	    on = true;
68	    num++;
69	    if (num==n){
70		cout<<t<<endl;
71		flag = true;
72	    }
73	}
74    }
75 #ifndef ONLINE_JUDGE  
76  fclose(stdin);
77  #endif
78	return 0;
79}