LeetCode :Spiral Matrix

Problem:

https://leetcode.com/problems/spiral-matrix/

#include<bits/stdc++.h>
using namespace std;
class Solution 
{
	public:
    	vector<int> spiralOrder(vector<vector<int> > &matrix) 
	{
		vector<int>v;
		if(matrix.size()==0)
		return v;
 
        	int t=0,b=matrix.size()-1,l=0,r=matrix[0].size()-1;
		while(1)
		{
			for(int i=t;i<=r;i++)
			v.push_back(matrix[t][i]);t++;
			if(l>r || t>b) break;
			for(int i=t;i<=b;i++)
			v.push_back(matrix[i][r]);r--;
			if(l>r || t>b) break;
			for(int i=r;i>=l;i--)
			v.push_back(matrix[b][i]);b--;
			if(l>r || t>b) break;
			for(int i=b;i>=t;i--)
			v.push_back(matrix[i][l]);l++;
			if(l>r || t>b) break;
 
 
 
		}
	return v;
    	}
};