1795A - Two Towers - CodeForces Solution

#include <bits/stdc++.h>
using namespace std;
int main(int argc, char** argv) {
	int t;
	cin>>t;
	while(t--){ 
	    int n,m;
	    cin>>n>>m;
	    string s1,s2;
		cin>>s1>>s2;
		int temp=1;
		int k1=0,k2=0; 
		bool kk=false;
		for(int i=0;i<n;i++) {
			if(i==0) continue;
	        if(s1[i]==s1[i-1]) temp++;
	        else temp=1;
	        if(temp==3){ 
	            kk=true;
	            break;
			} 
			if(temp==2){ 
			   k1++;
			}
		}  
		temp=1;
		for(int i=0;i<m;i++){ 
		    if(i==0)continue;
		  	if(s2[i]==s2[i-1]) temp++;
		  	else temp=1;
		  	if(temp==3){ 
		  	    kk=true;
		  	    break;
			  } 
			if(temp==2){ 
			  k2++;
			}
		} 
		if(k2>=2||kk||k1>=2||(k1==1&&k2==1)){
		  cout<<"NO"<<endl;
		  continue;
		}
		if(k1==1||k2==1){ 
		    if(s2[m-1]==s1[n-1]) cout<<"NO"<<endl;
		    else cout<<"YES"<<endl; 
		    continue;
		}  
		else cout<<"YES"<<endl;
	//	if((k1&&k2)||kk) cout<<"NO"<<endl;
		//else cout<<"YES"<<endl;
	}
}