Submission #852910

#	Time	Username	Problem	Language	Result	Execution time	Memory
852910		Abito	Election (BOI18_election)	C++14	28 / 100	3071 ms	3728 KiB

election

#include <bits/stdc++.h>
#define F first
#define S second
#define pb push_back
#define ppb pop_back
#define ep insert
#define endl '\n'
#define elif else if
#define pow pwr
#define sqrt sqrtt
#define int long long
#define y1 YONE
typedef unsigned long long ull;
using namespace std;
const int N=1e5+5;
int n,q,a[N];
int32_t main(){
    ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
    cin>>n;
    for (int i=1;i<=n;i++){
        char c;cin>>c;
        if (c=='C') a[i]=1;
        else a[i]=-1;
    }cin>>q;
    while (q--){
        int l,r,ans=0,p=0;cin>>l>>r;
        vector<int> v;
        for (int i=l;i<=r;i++) v.pb(a[i]);
        for (int i=0;i<v.size();i++){
            p+=v[i];
            if (p<0) v[i]=0,p++,ans++;
        }reverse(v.begin(),v.end());p=0;
        for (int i=0;i<v.size();i++){
            p+=v[i];
            if (p<0) v[i]=0,p++,ans++;
        }cout<<ans<<endl;
    }
    return 0;
}

Compilation message (stderr)

election.cpp: In function 'int32_t main()':
election.cpp:29:23: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |         for (int i=0;i<v.size();i++){
      |                      ~^~~~~~~~~
election.cpp:33:23: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |         for (int i=0;i<v.size();i++){
      |                      ~^~~~~~~~~

• Subtask 1: 28 / 28
• Subtask 2: 0 / 54
• Subtask 3: 0 / 18