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Discussion of Problem 2138. The Good, the Bad and the Ugly

My ac program
Posted by Song Zihui 24 Oct 2021 08:25
#include<iostream>
#include<cmath>
#include<cstring>
long long int n;
int main(){
    const int k = 256;
    std::string g = "GOOD";
    std::string b = "BAD";
    std::string str;
    std::cin>>str;
    std::cin>>n;
    if( n == 0){
        std::cout<<"0"<<"\n";
        return 0;
    }
    int arr2[4];
    int bit = 1;
    int arr[4];
    long long int l = 0;
    memset(arr,0,sizeof(arr));
    memset(arr2,0,sizeof(arr2));
    for(int i = 3;i >=0 ; i--){
        long long int j = pow(k,i);
        for(int C = 1;C<=255;C++){
            long long int h = C*j;
            if( n >= h){
                l = n % h;
                if(l==0 && i!=0){
                    arr[i] = 1;
                    bit = 1;
                    n = n-bit*h;
                    break;
                }
                else if( i == 0 && n <255){
                    arr[i] = n;
                    break;
                }
                else {
                    arr[i] = n/h;
                    bit = n/h;
                    n = n-bit*h;
                    break;
                }

            }
            else break;
        }
    }

    if(str == g){
        long long sum = 0;
        for(int i = 0,m = 3; i<=3,m>=0;i++,m--){
            sum+=pow(k,m)*arr[i];
        }
        std::cout<<sum<<"\n";
    }
    else if( str == b){
        long long int sum = 0;
        for(int i = 0,m = 3; i<=3,m >= 0;i++,m--)
            sum+=pow(k,m)*arr[i];
        std::cout<<sum<<"\n";
        }
    else;
    return 0;
}