zoukankan      html  css  js  c++  java
  • Codeforces Round #456 (Div. 2) A. Tricky Alchemy

    A. Tricky Alchemy
    time limit per test
    1 second
    memory limit per test
    256 megabytes
    input
    standard input
    output
    standard output

    During the winter holidays, the demand for Christmas balls is exceptionally high. Since it's already 2018, the advances in alchemy allow easy and efficient ball creation by utilizing magic crystals.

    Grisha needs to obtain some yellow, green and blue balls. It's known that to produce a yellow ball one needs two yellow crystals, green — one yellow and one blue, and for a blue ball, three blue crystals are enough.

    Right now there are A yellow and B blue crystals in Grisha's disposal. Find out how many additional crystals he should acquire in order to produce the required number of balls.

    Input

    The first line features two integers A and B (0 ≤ A, B ≤ 109), denoting the number of yellow and blue crystals respectively at Grisha's disposal.

    The next line contains three integers x, y and z (0 ≤ x, y, z ≤ 109) — the respective amounts of yellow, green and blue balls to be obtained.

    Output

    Print a single integer — the minimum number of crystals that Grisha should acquire in addition.

    Examples
    Input
    4 3
    2 1 1
    Output
    2
    Input
    3 9
    1 1 3
    Output
    1
    Input
    12345678 87654321
    43043751 1000000000 53798715
    Output
    2147483648

    第一次打cf。。。。。。
    分析:签到题。

    #include<cstdio>
    int main()
    {
        long long A,B,x,y,z;
        scanf("%lld%lld%lld%lld%lld",&A,&B,&x,&y,&z);
        long long yellow=x*2+y,blue=y+3*z;
        long long ans1=yellow-A,ans2=blue-B,ans=0;
        if(ans1>0) ans+=ans1;
        if(ans2>0) ans+=ans2;
        printf("%lld
    ",ans);
        return 0;
    }
    View Code
  • 相关阅读:
    移动端轮播图
    移动端的注册页面
    点击显示或者消失的效果(手风琴效果)
    canvas的一些简单绘制方法
    用canvas来手动绘画
    canvas标签的运用
    Html5新标签解释及用法
    最近的心得
    浅谈正则表达式
    P3197 [HNOI2008]越狱
  • 原文地址:https://www.cnblogs.com/ACRykl/p/8215457.html
Copyright © 2011-2022 走看看