➤ Problem Link : 1200A. Hotelier
✅ C++ Solution :
#include<bits/stdc++.h> using namespace std; int main() { int n; cin>>n; string s; cin>>s; bool arr[10]; memset(arr,0,sizeof(arr)); for(int i=0;i<s.length();i++) { if(s[i]>='0' && s[i]<='9') arr[s[i]-'0']=0; else if(s[i]=='L') { int j; for(j=0;j<10 && arr[j]==1;j++); arr[j]=1; } else { int j; for(j=9;j>=0 && arr[j]==1 ; j--); arr[j]=1; } } for(int i=0;i<10;i++) cout<<arr[i]; }
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