1644A Doors and Keys codeforces solution i cpp
by ujjal roy
#include<bits/stdc++.h>
using namespace std;
main()
{
int t,r,g,b,i;
cin>>t;
while(t--)
{
r=0,g=0,b=0;
int ans=0;
string s;
cin>>s;
for(i=0;i<s.size();i++)
{
if(s[i]=='r') r=1;
if(s[i]=='g') g=1;
if(s[i]=='b') b=1;
if(s[i]=='R'&&r!=1) ans=1;
if(s[i]=='G'&&g!=1) ans=1;
if(s[i]=='B'&&b!=1) ans=1;
}
if(ans) cout<<"NO"<<endl;
else cout<<"YES"<<endl;
}
return 0;
}
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