제출 #507533

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
507533		maco1503	JJOOII 2 (JOI20_ho_t2)	C++14	100 / 100	7 ms	5488 KiB

ho_t2

#include <bits/stdc++.h>
#define rpd ios_base :: sync_with_stdio(0); cin.tie(0);
#define ll long long
#define fs first
#define sc second
#define pb push_back
#define mod 666013
#define NMAX 100000 + 5
#define inf LLONG_MAX
using namespace std;
ll n,k,mat[4][200005];
int main()
{
    rpd;
    cin>>n>>k;
    string s;
    cin>>s;
    for(ll i=0;i<s.size();i++)
    {
    mat[0][i+1]=mat[0][i];
    mat[1][i+1]=mat[1][i];
    mat[2][i+1]=mat[2][i];
    if(s[i]=='J'){
        mat[0][i+1]++;
    }else if(s[i]=='O'){
    mat[1][i+1]++;
    }else {
    mat[2][i+1]++;
    }
    }
//    for(int i=0;i<=2;i++,cout<<'\n')
//        for(int j=1;j<=n;j++)cout<<mat[i][j]<<' ';
    ll i=1,j=1,ans=inf,pos=1;
    for(ll l=1;l<=n;l++)
    {
        while(i<=n&&mat[0][i]-mat[0][l-1]<k){
        i++;
        }
        while(j<=n&&mat[1][j]-mat[1][i-1]<k){
        j++;
        }

        while(pos<=n&&mat[2][pos]-mat[2][j-1]<k){
        pos++;
        }
        if(i<=n&&j<=n&&pos<=n){
        ans=min(ans,pos-l+1);
        }

    }
    if(ans==inf){
    ans=3*k-1;
    }
    ans-=3*k;
    cout<<ans<<'\n';

    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

ho_t2.cpp: In function 'int main()':
ho_t2.cpp:18:17: 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]
   18 |     for(ll i=0;i<s.size();i++)
      |                ~^~~~~~~~~

• Subtask 1: 1 / 1
• Subtask 2: 12 / 12
• Subtask 3: 87 / 87