CodeForces 6C Alice, Bob and Chocolate

最新推荐文章于 2023-05-14 20:43:12 发布

转载最新推荐文章于 2023-05-14 20:43:12 发布 · 138 阅读

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原文链接：http://www.cnblogs.com/q934098774/p/5388705.html

本文介绍了一种简单的游戏算法实现——两人从两端同时开始吃摆放成一条直线的巧克力棒，考虑了玩家不能同时吃同一块巧克力棒的情况，并通过实例演示了如何计算每个人能吃到的巧克力棒数量。

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题意：有n个物品，每个物品吃掉的时间是a[i]，一个人从左边开始吃，一个人从右边开始吃，如果两个人同时吃到了一个东西，算左边的。最后问你左边吃了多少个，右边吃了多少个

思路：直接暴力扫吧...

#include<bits/stdc++.h>
using namespace std;
const int maxn = 1e5+7;
long long a[maxn];
int main()
{
    int n;scanf("%d",&n);
    for(int i=1;i<=n;i++)
        scanf("%lld",&a[i]);
    long long t1=0,t2=0;
    int num1=0,num2=0;
    int l=1,r=n;
    while(l<=r)
    {
        if(t1<=t2)t1+=a[l++],num1++;
        else t2+=a[r--],num2++;
    }
    cout<<num1<<" "<<num2<<endl;
}

Description

Alice and Bob like games. And now they are ready to start a new game. They have placed n chocolate bars in a line. Alice starts to eat chocolate bars one by one from left to right, and Bob — from right to left. For each chocololate bar the time, needed for the player to consume it, is known (Alice and Bob eat them with equal speed). When the player consumes a chocolate bar, he immediately starts with another. It is not allowed to eat two chocolate bars at the same time, to leave the bar unfinished and to make pauses. If both players start to eat the same bar simultaneously, Bob leaves it to Alice as a true gentleman.

How many bars each of the players will consume?

Input

The first line contains one integer n (1 ≤ n ≤ 10⁵) — the amount of bars on the table. The second line contains a sequence t₁, t₂, ..., t_n(1 ≤ t_i ≤ 1000), where t_i is the time (in seconds) needed to consume the i-th bar (in the order from left to right).

Output

Print two numbers a and b, where a is the amount of bars consumed by Alice, and b is the amount of bars consumed by Bob.

Sample Input

Input

5
2 9 8 2 7

Output

2 3

转载于:https://www.cnblogs.com/q934098774/p/5388705.html