Infinite loop in C++ program

#include<iostream>
using namespace std;
int main(){
	int months,size,daysOff1,daysOff2,exit,work1,work2;
	do{
		cout<<"Please enter the month's number: "<<endl;
		cin>>months;
		
		switch(months){
			case 1:
			case 3:
			case 5:
			case 7:
			case 8:
			case 10:
			case 12: 
				size = 31;
				break;
			case 4:
			case 6:
			case 9:
			case 11: 
				size = 30;
				break;
			case 2: 
				size = 28;
				break;
			default : 
				cout<<"please enter a correct value"<<endl;
			continue;  // to Make it ask again if the user entered a wrong value
		}
		
		cout<<"Please enter the number of off days for fahad: "<<endl;
		cin>>daysOff1;
		daysOff1++;
		cout<<"Please enter the number of off days for talal: "<<endl;
		cin>>daysOff2;
		daysOff2++;
		
		int fahad[size],talal[size];
	
		for (int i=0; i < size; i++)
		{
			while( work1 < size )
			{
				if(fahad[i-1]+daysOff1 < size){
					fahad[i] = fahad[i-1] + daysOff1 + 1;
					work1 = fahad[i];
					i++;
					
				}
			}
		}
		
		for(int i=0; i < size; i++)
		{
			while (work2 < size)
			{
				if(talal[i-1]+daysOff2 < size){
				talal[i] = talal[i-1] + daysOff2 + 1;
				work2 = talal[i];
				i++;
				
				}
			}
		}
	
		for(int i=0; i<size ;i++)
		{
			for(int j=0; j < size ;j++){	
		if(fahad[i] == talal[j]){
			cout<<i+1<<endl;
		}}}
		
		cout<<"0 To exit 1 to continue";
		cin>>exit;
	}while(exit != 0);
}