HackerRank Detecting Valid Latitude and Longitude Pairs Solution

#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
#include <sstream>
#include <string>
using namespace std;

bool isNonZero(string str)
{
   if(str.size()==0)
      return false;
   int i=0;
   for(i=0;i<str.length();++i)
      if(str[i]!='0')
         return true;
   return false;   
}

int toNum(string str)
{
   int ans=0,factor=1;
   for(int i=str.length()-1;i>=0;--i)
   {
      int temp=str[i]-'0';
      ans+=temp*factor;
      factor*=10;      
   }
   return ans;
}

bool check(string str,int flag)
{
   int pos=str.find('.'),len=str.length();
   string full,dec;
   if(pos==str.length()-1 || str[0]=='0')
      return false;
   if(pos!=string::npos)
   {
      full=str.substr(0,pos);
      dec=str.substr(pos+1,len-pos-1);
   }
   else
   {
      full=str;
      dec="";
   }
   //cout<<str<<" "<<full<<" "<<dec<<" "<<isNonZero(dec)<<" "<<toNum(full)<<endl;
   if(flag==1 && (full.length()>2 || toNum(full)>90 || (full=="90" && isNonZero(dec))))
      return false; 
   if(flag==2 && (full.length()>3 || toNum(full)>180 || (full=="180" && isNonZero(dec))))
      return false;
   return true;
}

int main() {
   
   string inp,x,y;
   int n,pos;
   cin>>n;
   cin>>ws;
   while(n--)
   {
      getline(cin,inp);
      pos=inp.find(',');
      x=inp.substr(1,pos-1);
      y=inp.substr(pos+2,inp.length()-pos-3);
      if(x[0]=='+' || x[0]=='-')
         x=x.substr(1,x.length()-1);
      if(y[0]=='+' || y[0]=='-')
         y=y.substr(1,y.length()-1);
      if(check(x,1) && check(y,2))
         cout<<"Valid\n";
      else
         cout<<"Invalid\n";
      
   }
   return 0;
}

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.io.StringReader;
import java.util.Arrays;
import java.util.regex.Pattern;

public class Solution {
	static BufferedReader br;
	static PrintWriter out;
	static String INPUT = "";
	
	static void solve() throws Exception
	{
		Pattern p = Pattern.compile("\\([-+]?([1-8]?[0-9](\\.[0-9]+)?|90(\\.0+)?), [-+]?(1?([0-7][0-9](\\.[0-9]+)?|80(\\.0+)?)|[1-9]?[0-9](\\.[0-9]+)?)\\)");
		int n = Integer.parseInt(br.readLine());
		for(int i = 0;i < n;i++){
			String line = br.readLine();
			if(p.matcher(line).matches()){
				out.println("Valid");
			}else{
				out.println("Invalid");
			}
		}
	}
	
	public static void main(String[] args) throws Exception
	{
		long S = System.currentTimeMillis();
		br = new BufferedReader(INPUT.isEmpty() ? new InputStreamReader(System.in) : new StringReader(INPUT));
		out = new PrintWriter(System.out);
		
		solve();
		out.flush();
		long G = System.currentTimeMillis();
		tr(G-S+"ms");
	}
	
	static void tr(Object... o) { if(INPUT.length() != 0)System.out.println(Arrays.deepToString(o)); }
}

import sys
import re

digit = "[+-]?(?:0|[1-9][0-9]*)(?:\.[0-9]+)?"
prog = re.compile("\((" + digit + "), (" + digit + ")\)\Z")

n = int(sys.stdin.readline())

for s in sys.stdin:
    s = s.rstrip('\n')
    result = prog.match(s)
    if result:
        x = float(result.group(1))
        y = float(result.group(2))
        if (-90 <= x and x<=90
             and -180 <= y and y <= 180):
            print "Valid"
            continue
    print "Invalid"

function processData(input) {
    var lines = input.trim().split("\n"),
        n = lines.shift(),
        line, lat, long, ok;
    for (var i = 0; i < n; i++) {
        line = lines[i].replace(/^\(|\)$/g, '').split(", ");
        ok = line[0].match(/^[+-]?(0|[1-9][0-9]*)(\.[0-9]+)?$/);
        ok = ok && line[1].match(/^[+-]?(0|[1-9][0-9]*)(\.[0-9]+)?$/);
        lat = - -line[0];
        long = - -line[1];
        console.log(ok && Math.abs(lat) <= 90 && Math.abs(long) <= 180 ? 'Valid' : 'Invalid');
    }
} 

process.stdin.resume();
process.stdin.setEncoding("ascii");
_input = "";
process.stdin.on("data", function (input) {
    _input += input;
});

process.stdin.on("end", function () {
   processData(_input);
});

<?php
$_fp = fopen("php://stdin", "r");
/* Enter your code here. Read input from STDIN. Print output to STDOUT */
$n = fgets($_fp);
$remove = array("+","-","(",")");
for($i=0;$i<$n;$i++){
    $num = split(',',str_replace($remove,'',fgets($_fp)));
    if(!valid($num[0]) || !valid($num[1]))
            print "Invalid \n";
    else print ($num[0] <= 90 && $num[1] <= 180) ? "Valid \n" : "Invalid \n"; 
}
function valid($s){
    $s = str_split($s);
    return ($s[(sizeof($s)-1)] == '.' || $s[0] == '0') ? false : true;
}
?>