#include<bits/stdc++.h> using namespace std; #define ll long long #define pb push_back #define ff first #define ss second #define all(s) s.begin(),s.end() #define rall(s) s.rbegin(),s.rend() int main(){ ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0); ll n; cin>>n; string s; cin>>s; ll q; cin>>q; bool del[n+5]; while(q--){ ll l,r; cin>>l>>r; fill(del,del+n,0); string t=s.substr(l-1,r-l+1); ll cur=0,cnt=0; for(ll i=0;i<t.size();i++){ if(del[i]==false){ if(t[i]=='C') cur++; else cur--; if(cur<0){ cnt++; cur++; del[i]=true; } } } cur=0; for(ll i=t.size()-1;i>=0;i--){ if(del[i]==false){ if(t[i]=='C') cur++; else cur--; if(cur<0){ cnt++; cur++; del[i]=true; } } } cout<<cnt<<"\n"; } }

election.cpp: In function 'int main()':
election.cpp:27:21: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |         for(ll i=0;i<t.size();i++){
      |                    ~^~~~~~~~~