zoukankan      html  css  js  c++  java
  • 【cf492】D. Vanya and Computer Game(二分)

    http://codeforces.com/contest/492/problem/D

    有时候感觉人sb还是sb,为什么题目都看不清楚?

    x per second, y per second...

    于是我们二分second即可。

    而且对每个monster都有伤害。。。。

    #include <cstdio>
    #include <cstring>
    #include <cmath>
    #include <string>
    #include <iostream>
    #include <algorithm>
    #include <queue>
    #include <set>
    #include <map>
    using namespace std;
    typedef long long ll;
    #define rep(i, n) for(int i=0; i<(n); ++i)
    #define for1(i,a,n) for(int i=(a);i<=(n);++i)
    #define for2(i,a,n) for(int i=(a);i<(n);++i)
    #define for3(i,a,n) for(int i=(a);i>=(n);--i)
    #define for4(i,a,n) for(int i=(a);i>(n);--i)
    #define CC(i,a) memset(i,a,sizeof(i))
    #define read(a) a=getint()
    #define print(a) printf("%d", a)
    #define dbg(x) cout << (#x) << " = " << (x) << endl
    #define error(x) (!(x)?puts("error"):0)
    #define rdm(x, i) for(int i=ihead[x]; i; i=e[i].next)
    inline const int getint() { int r=0, k=1; char c=getchar(); for(; c<'0'||c>'9'; c=getchar()) if(c=='-') k=-1; for(; c>='0'&&c<='9'; c=getchar()) r=r*10+c-'0'; return k*r; }
    
    
    int main() {
    	int n; ll x, y;
    	read(n); read(x); read(y);
    	for1(i, 1, n) {
    		ll a=getint();
    		ll l=0, r=1ll<<60, mid;
    		while(l<=r) {
    			mid=(l+r)>>1;
    			if(mid/x+mid/y>=a) r=mid-1;
    			else l=mid+1;
    		}
    		mid=r+1;
    		if(mid%x==0 && mid%y==0) puts("Both");
    		else if(mid%y==0) puts("Vanya");
    		else if(mid%x==0) puts("Vova");
    	}
    	return 0;
    }
    

      


    Vanya and his friend Vova play a computer game where they need to destroy n monsters to pass a level. Vanya's character performs attack with frequency x hits per second and Vova's character performs attack with frequencyy hits per second. Each character spends fixed time to raise a weapon and then he hits (the time to raise the weapon is 1 / x seconds for the first character and 1 / y seconds for the second one). The i-th monster dies after he receives ai hits.

    Vanya and Vova wonder who makes the last hit on each monster. If Vanya and Vova make the last hit at the same time, we assume that both of them have made the last hit.

    Input

    The first line contains three integers n,x,y (1 ≤ n ≤ 105, 1 ≤ x, y ≤ 106) — the number of monsters, the frequency of Vanya's and Vova's attack, correspondingly.

    Next n lines contain integers ai (1 ≤ ai ≤ 109) — the number of hits needed do destroy the i-th monster.

    Output

    Print n lines. In the i-th line print word "Vanya", if the last hit on the i-th monster was performed by Vanya, "Vova", if Vova performed the last hit, or "Both", if both boys performed it at the same time.

    Sample test(s)
    input
    4 3 2
    1
    2
    3
    4
    output
    Vanya
    Vova
    Vanya
    Both
    input
    2 1 1
    1
    2
    output
    Both
    Both
    Note

    In the first sample Vanya makes the first hit at time 1 / 3, Vova makes the second hit at time 1 / 2, Vanya makes the third hit at time 2 / 3, and both boys make the fourth and fifth hit simultaneously at the time 1.

    In the second sample Vanya and Vova make the first and second hit simultaneously at time 1.

  • 相关阅读:
    2019icpc上海站 打星体验,首次感想 D K代码
    P1983 车站分级 思维+拓扑排序
    POJ 2352 Stars Treap & 线段树
    POJ 2761 Feed the dogs 基础Treap
    POJ 1442 Black Box 基础Treap
    CodeForces R285 Div2
    HDU 5145 NPY and girls 莫队算法
    2014 上海赛区小结
    2014 牡丹江赛区总结
    HDU 5125 Magic Ball DP+树状数组
  • 原文地址:https://www.cnblogs.com/iwtwiioi/p/4136445.html
Copyright © 2011-2022 走看看