坑爹CF April Fools Day Contest题解

时间：2023-03-08 17:12:09

H - A + B Strikes Back

A + B is often used as an example of the easiest problem possible to show some contest platform. However, some scientists have observed that sometimes this problem is not so easy to get accepted. Want to try?

Input

The input contains two integers a and
b (0 ≤ a, b ≤ 103), separated by a single space.

Output

Output the sum of the given integers.

Sample test(s)
Input
5 14
Output
19
Input
381 492
Output
873

坑爹啊这题目，输出格式要求……我记得我年少无知时候刚打完各种A+B题目后参加比赛盼望A+B题目的出现..

今天看到了，WA了好多次。。重点就是输出后要多输个空格。。

#include<iostream>

#include<cstdio>

#include<cstring>

using namespace std;

int main(){

    int a,b;

    cin>>a>>b;

    cout<<a+b<<" "<<endl;

    return 0;

}
A. The Great Game
time limit per test

1 second

memory limit per test

256 megabytes

input

standard input

output

standard output

Two teams meet in The Game World Championship. Some scientists consider this game to be the most intellectually challenging game in the world. You are given two strings describing the teams' actions in the final battle. Figure out who became the champion.

Input

The input contains two strings of equal length (between 2 and 20 characters, inclusive). Each line describes the actions of one team.

Output

Output "TEAM 1 WINS" if the first team won, "TEAM 2 WINS" if the second team won, and "TIE" if there was a tie.

Sample test(s)
Input
[]()[]8<

8<[]()8<
Output
TEAM 2 WINS
Input
8<8<()

[]8<[]
Output
TIE

还是水题一道。原理很简单。

"8<" > " [] "

"[ ] " >  " ()"

"() " > "8<"

我本来以为我这么天真的想法是肯定WA了，但是题目的信息量真心低啊……硬着头皮交了，AC了……

#include<iostream>

#include<cstdio>

#include<cstring>

#include<string>

using namespace std;

int main(){

    string a,b;

    int A,B;

    A=0,B=0;

    cin>>a>>b;

    for(int i=0;i<a.length();i+=2){

       if(a[i]==b[i]){

          continue;

       }else{

          if(a[i]=='8'&&b[i]=='['){

             A++;

          }else if(a[i]=='['&&b[i]=='('){

             A++;

          }else if(a[i]=='('&&b[i]=='8'){

             A++;

          }else if(a[i]==b[i]){

             A++;

             B++;

          }else{

             B++;

          }

       }

    }

    if(A==B){cout<<"TIE"<<endl;}

    else if(A>B){cout<<"TEAM 1 WINS"<<endl;}

    else cout<<"TEAM 2 WINS"<<endl;

    return 0;

}

C - Magnum Opus

Salve, mi amice.

Et tu quidem de lapis philosophorum. Barba non facit philosophum. Labor omnia vincit. Non potest creatio ex nihilo. Necesse est partibus.

Rp:

I Aqua Fortis

I Aqua Regia

II Amalgama

VII Minium

IV Vitriol

Misce in vitro et æstus, et nil admirari. Festina lente, et nulla tenaci invia est via.

Fac et spera,

Vale,

Nicolas Flamel

Input

The first line of input contains several space-separated integers
ai (0 ≤ ai ≤ 100).

Output

Print a single integer.

Sample test(s)
Input
2 4 6 8 10
Output
1

炼金术你懂不懂？真扯淡……题目写得无法读懂，是法文吗？反正我最多能看懂英文，中文，还有粤语~（没有粤语OJ啊！！！），百度了一下，就是炼金术的配方啊。。。

I Aqua Fortis    1分量的硝酸

I Aqua Regia   1分量的王水

II Amalgama    2分量的汞合金

VII Minium        7分量的四氧化三铅

IV Vitriol            4分量的硫酸盐

不知道我翻译错了没有，神配方啊！

给定ABCDE，求最多配出多少（？）。

这个41专场真心太坑。。 

#include<iostream>

#include<cstdio>

#include<cstring>

#include<string>

using namespace std;

int main(){

    int A,B,C,D,E;

    cin>>A>>B>>C>>D>>E;

     C>>=1;

     D/=7;

     E>>=2;

     A= min(A,B);

     A= min(A,E);

     C= min(D,C);

     C= min(A,C);

     cout<<C<<endl;

    //cout<<res<<endl;

    return 0;

}

B - Mysterious Language

You are given a mysterious language (codenamed "Secret") available in "Custom Invocation" tab. Figure out what this language is and write a program which prints its name. Note that the program must be written in this language.

Input

This program has only one test (your program doesn't have to read anything).

Output

Output the name of the mysterious language. Note that the name is case-sensitive and might contain digits and special characters.

Sample test(s)
Note

Some scientists disagree on what should be considered as a language and what should be considered as a dialect.

这题目，必须先WA一次。看着CE来百度，发现是FORTRAN，写了N次，都是CE，无果，看别人AC代码，跪了。

       write(*,*)"FORTRAN 77"

       END

不能少缩紧啊！！！！前面的空格不能没有。

D - Big Data

D. Big Data
time limit per test

1 second

memory limit per test

256 megabytes

input

standard input

output

standard output

Little Petya wanted to give an April Fools Day present to some scientists. After some hesitation he decided to give them the array that he got as a present in Codeforces Round #153 (Div.2). The scientists rejoiced at the gift and decided to put some important
facts to this array. Here are the first few of the facts:

  • The highest mountain above sea level in the world is Mount Everest. Its peak rises to 8848 m.
  • The largest board game tournament consisted of 958 participants playing chapaev.
  • The largest online maths competition consisted of 12766 participants.
  • The Nile is credited as the longest river in the world. From its farthest stream in Burundi, it extends 6695 km in length.
  • While not in flood, the main stretches of the Amazon river in South America can reach widths of up to 1100 km at its widest points.
  • Angel Falls is the highest waterfall. Its greatest single drop measures 807 m.
  • The Hotel Everest View above Namche, Nepal — the village closest to Everest base camp – is at a record height of 31962 m
  • Uranium is the heaviest of all the naturally occurring elements. Its most common isotope has a nucleus containing 146 neutrons.
  • The coldest permanently inhabited place is the Siberian village of Oymyakon, where the temperature of -68°C was registered in the
    twentieth century.
  • The longest snake held in captivity is over 25 feet long. Its name is Medusa.
  • Colonel Meow holds the world record for longest fur on a cat — almost 134 centimeters.
  • Sea otters can have up to 10000 hairs per square inch. This is the most dense fur in the animal kingdom.
  • The largest state of USA is Alaska; its area is 663268 square miles
  • Alaska has a longer coastline than all of the other 49 U.S. States put together: it is 154103 miles long.
  • Lake Baikal is the largest freshwater lake in the world. It reaches 1642 meters in depth and contains around one-fifth of the world’s unfrozen fresh water.
  • The most colorful national flag is the one of Turkmenistan, with 106 colors.
Input

The input will contain a single integer between 1 and 16.

Output

Output a single integer.

据官方解释，这是一题判别每个事件的正确性，没耐心，直接看答案过了算了。。。

#include<iostream>

#include<cstdio>

#include<cstring>

#include<string>

using namespace std;

int main(){

    int A;

    int B[]={0,1,0,0,1,0,1,0,1,1,1,0,0,1,0,1,0};

    cin>>A;

     cout<<B[A]<<endl;

    //cout<<res<<endl;

    return 0;

}

F - 000001

Input

The input contains a single integer a (1 ≤ a ≤ 64).

Output

Output a single integer.

Sample test(s)
Input
2
Output
1
Input
4
Output
2
Input
27
Output
5
Input
42
Output
6

第一次做没有题目详情的题目……

我相信绝大多部分人都跟我一样，看成是ceil(log(n)/log(n))的题目，之后陷入无限WA。。。

这个世界有一个A000001数列……

巨坑。。

#include<iostream>

#include<cstdio>

#include<cstring>

#include<cmath>

using namespace std;

int main(){

    int A;

    int B[]={0,1, 1, 1, 2, 1, 2, 1, 5, 2, 2, 1, 5,

             1, 2, 1, 14, 1, 5, 1, 5, 2, 2, 1, 15,

             2, 2, 5, 4, 1, 4, 1, 51, 1, 2, 1, 14,

             1, 2, 2, 14, 1, 6, 1, 4, 2, 2, 1, 52,

             2, 5, 1, 5, 1, 15, 2, 13, 2, 2, 1, 13,

             1, 2, 4, 267, 1, 4, 1, 5, 1, 4, 1, 50,

             1, 2, 3, 4, 1, 6, 1, 52, 15, 2, 1, 15,

             1, 2, 1, 12, 1, 10, 1, 4, 2 };

    cin>>A;

     cout<<B[A]<<endl;

    //cout<<res<<endl;

    return 0;

}

今天算是放松放松，开心开心，41专场真坑。。。