Submission #1114975

#	Time	Username	Problem	Language	Result	Execution time	Memory
1114975		AdamGS	JJOOII 2 (JOI20_ho_t2)	C++17	100 / 100	11 ms	3100 KiB

ho_t2

#include <bits/stdc++.h>
using namespace std;
int main()
{
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    int n,k,o;
    string napis;
    cin >> n >> k >> napis;
    queue<int>indexJ,indexI,indexO;
    vector<int>J1,J2,I1,I2,O1,O2;

    for(int i=0;i<n;++i){
        if(napis[i]=='O')
            indexO.push(i);
        if(napis[i]=='J')
            indexJ.push(i);
        if(napis[i]=='I')
            indexI.push(i);
        if(indexJ.size()==k){
            J1.push_back(indexJ.front());
            J2.push_back(i);
            indexJ.pop();
        }
        if(indexO.size()==k){
            O1.push_back(indexO.front());
            O2.push_back(i);
            indexO.pop();
        }
        if(indexI.size()==k){
            I1.push_back(indexI.front());
            I2.push_back(i);
            indexI.pop();
        }  
    }
    int wynik=2000007;
    vector<int>::iterator it1,it2;
    for(int i=0;i<J1.size();++i){
        it1=lower_bound(O1.begin(),O1.end(),J2[i]);
        if(it1!=O1.end()){
            it2=lower_bound(I1.begin(),I1.end(),O2[it1-O1.begin()]);
            /*cout << J1[i] << ' '<< J2[i] << endl;
            cout << O1[it1-O1.begin()] << ' ' << O2[it1-O1.begin()] << endl;
            cout << I1[it2-I1.begin()] << ' ' << I2[it2-I1.begin()] << endl;
            */
            if(it2!=I1.end()){
                
                int s3=I2[it2-I1.begin()]-J1[i]+1-3*k;
                wynik=min(s3,wynik);
            }
        }
    }
    if(wynik!=2000007)
        cout << wynik;
    else
        cout << -1;

    return 0;
}

Compilation message (stderr)

ho_t2.cpp: In function 'int main()':
ho_t2.cpp:19:25: warning: comparison of integer expressions of different signedness: 'std::queue<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   19 |         if(indexJ.size()==k){
      |            ~~~~~~~~~~~~~^~~
ho_t2.cpp:24:25: warning: comparison of integer expressions of different signedness: 'std::queue<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   24 |         if(indexO.size()==k){
      |            ~~~~~~~~~~~~~^~~
ho_t2.cpp:29:25: warning: comparison of integer expressions of different signedness: 'std::queue<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   29 |         if(indexI.size()==k){
      |            ~~~~~~~~~~~~~^~~
ho_t2.cpp:37:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   37 |     for(int i=0;i<J1.size();++i){
      |                 ~^~~~~~~~~~
ho_t2.cpp:6:13: warning: unused variable 'o' [-Wunused-variable]
    6 |     int n,k,o;
      |             ^

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