Submission #956529

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
956529	2024-04-02 06:44:02	moonrabbit2	Election (BOI18_election)	C++17	28 / 100	3034 ms	3136 KiB

election

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#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,sse4.1,sse4.2,popcnt,abm,mmx,avx,avx2,fma")
#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
#include "debug.h"
#else
#define debug(...)
#endif
const int N=500005;
int n,a[N],q;
bool chk[N];
string s;
int main(){
  ios::sync_with_stdio(false); cin.tie(0);
  cin>>n>>s>>q;
  for(int i=1;i<=n;i++){
    if(s[i-1]=='C') a[i]=1;
    else a[i]=-1;
  }
  for(int l,r,t=1;t<=q;t++){
    cin>>l>>r;
    int s=0,ans=0,mn=0;
    for(int i=l;i<=r;i++){
      s+=a[i];
      if(s<mn){
        chk[i]=1;
        mn=s;
        ans++;
 
 
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• Subtask 1: 28 / 28
• Subtask 2: 0 / 54
• Subtask 3: 0 / 18