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UVA Runtime Error Help

May 19, 2014 at 10:07pm
whilom (24)
Working on UVA 11947: Cancer and Scorpio. I keep getting a runtime error and I dont know why.

Link: http://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&category=24&problem=3098&mosmsg=Submission+received+with+ID+13655102

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#include <iostream>
#include <string>
#include <cmath>
#include <algorithm>
#include <utility>
#include <sstream>


using namespace std;

long toInt(string a)
{
	istringstream buf(a);
	long ret;
	buf>>ret;
	return ret;	
}

bool isLeap(int year)
{
	if(year%4==0 && year%100!=0)
	{
		return true;
	}
	else if(year%400==0)
	{
		return true;
	}
	else 
	{
		return false; 
	}
}

int month_length[]={-1,31,28,31,30,31,30,31,31,30,31,30,31};

pair <int,int> signs[13];



string sign_name[]={"aquarius","pisces", "aries", "taurus","gemini", "cancer", "leo","virgo", "libra",
					"scorpio","sagittarius","capricorn"};

int findsign(const int m, const int d)
{
	int ret;
	ret=m-1;
	if(d<=signs[ret].second){ret--;}
	return ret; 
	
	
}

int main()
{
	
	signs[0]= make_pair (1,21);
	signs[1] = make_pair (2,20);
	signs[2] = make_pair (3,21); 
	signs[3] = make_pair (4,21);
	signs[4] = make_pair (5,22); 
	signs[5] = make_pair (6,22);
	signs[6] = make_pair (7,23);
	signs[7] = make_pair (8,22);
	signs[8] = make_pair (9,24);
	signs[9] = make_pair (10,24);
	signs[10] = make_pair (11,23);
	signs[11] = make_pair (12,23);
	signs[12] = make_pair (1,20);
	

	int runs,temp,m,d,y,move;
	string input;

	cin >> runs; 

	for(int i=0; i<runs; ++i)
	{
		cin >> input;
		//cout << input << endl;

		string month=input.substr(0,2);
		string day= input.substr(2,2);
		string year= input.substr(4);
		//cout << month << " "<< day << " "<< year << endl;

		 m=toInt(month);
		 d=toInt(day);
		 y=toInt(year);

		 //cout << m << " "<< d <<" " << y << endl;
		 move=0;

		while(move<280)
		{
			if(isLeap(y))
			{
				month_length[2]++;
			}

			if(280-move>month_length[m])
			{

				move+= month_length[m]-d; 
				d=0; 
				if(m==12) {m=1; y++;}
				else {m++;}
			}
			else
			{
				d+=280-move;
				cout << i+1 << " ";

				
				 temp= findsign(m,d);
			
				if(m<10){cout << "0" << m << "/";}
				else{cout << m << "/";}

				if(d<10){cout << "0" << d << "/";}
				else{cout << d << "/";}

				cout << y << " ";

				cout << sign_name[temp]; 
				cout << endl;
				

				break;
			}


			if(month_length[2]!=28){month_length[2]--;}
			
		}

	}
	return 0; 
}
Edit & run on cpp.sh
May 19, 2014 at 10:17pm
Yay295 (431)
What does the error say?
May 19, 2014 at 10:42pm
whilom (24)
UVA simply says runtime error. But in my MacBook Pro it compiles and runs normally
May 19, 2014 at 11:04pm
Yay295 (431)
If it runs fine on one computer but not another, it could either be a compatibility issue with the functions you're using, or a lack of libraries on one computer but not the other.
May 20, 2014 at 12:34am
whilom (24)
Would you know how to fix that?
May 20, 2014 at 1:34am
Yay295 (431)
No, sorry. I don't have a mac.
May 20, 2014 at 2:48am
ne555 (10692)
Or undefined behaviour, or lazy testing.

Checkout if `findsign()' is returning an out of bounds index (-1 or 12)
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