HackerRank Day of the Programmer Problem Solution

 


HackerRank Day of the Programmer Problem Solution C Solution

#include <math.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <assert.h>
#include <limits.h>
#include <stdbool.h>

void solve(int year){
    // Complete this function
    char str[20] = "13.09.2017";
    int num_days[12] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
    
    if (year >= 1919) {
        if (((year % 400) == 0) || (((year % 4) == 0) && ((year % 100) != 0))) {
            str[1] = '2';
        }
    } else if (year <= 1917) {
        if ((year % 4) == 0) {
            str[1] = '2';
        }
    } else {
        //year = 1918
        str[0] = '2';
        str[1] = '6';
    }
    
    str[6] = '0' + year / 1000;
    str[7] = '0' + (year / 100) % 10;
    str[8] = '0' + (year / 10) % 10;
    str[9] = '0' + year % 10;

    printf("%s\n", str);
}

int main() {
    int year; 
    scanf("%d", &year);
    int result_size;
    solve(year);
    
    return 0;
}

HackerRank Day of the Programmer Problem Solution JavaScript 

process.stdin.resume();
process.stdin.setEncoding('ascii');

var input_stdin = "";
var input_stdin_array = "";
var input_currentline = 0;

process.stdin.on('data', function (data) {
    input_stdin += data;
});

process.stdin.on('end', function () {
    input_stdin_array = input_stdin.split("\n");
    main();    
});

function readLine() {
    return input_stdin_array[input_currentline++];
}

/////////////// ignore above this line ////////////////////

function solve(year){
    // Complete this function
    var days=[31,28,31,30,31,30,31,31,30,31,30,31];
    if(year===1918){
        days[1]=28-13;
    }
    else if(year<=1917){
        
        if(year%4===0){
        days[1]=29;
        }
    }
    else{
         if(year%400===0||(year%4===0&&year%100!==0)){
        days[1]=29;
        }
    }
    
    var count=0,i=0;
    while(count+days[i]<=256){
        count+=days[i];
        i++;
    }
    var day=256-count;
    var month=i+1;
   
    return `${day<10?'0'+day:day}.${month<10?'0'+month:month}.${year}`
}

function main() {
    var year = parseInt(readLine());
    var result = solve(year);
    process.stdout.write(""+result+"\n");

}

HackerRank Day of the Programmer Problem Solution Python

#!/bin/python3

import sys

def solve(year):
    if year<1918:
        if year%4==0:
            d = 12
        else:
            d = 13
    elif year>1918:
        if year%400==0 or (year%4 == 0 and year%100!=0):
            d = 12
        else:
            d =13
    else:
        d= 26

    return '{}.09.{}'.format(d,year)
year = int(input().strip())
result = solve(year)
print(result)

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