Submission #1023786

#	Time	Username	Problem	Language	Result	Execution time	Memory
1023786		vjudge1	JJOOII 2 (JOI20_ho_t2)	C++17	13 / 100	2057 ms	984 KiB

ho_t2

#include <bits/stdc++.h>
#define int long long
#define pb push_back
#define f first
#define s second
#pragma GCC optimize("O3")
#pragma GCC target("avx2")
const int inf = 1e9;
using namespace std; 
void solve() {
	int n, k; 
	cin >> n >> k;
   	string s;
   	cin >> s;
   	int ans = inf;
    string s2 = "";
    for(int i = 0;i < k;i++) {
    	s2 += 'J';
	}
    for(int i = 0;i < k;i++) {
    	s2 += 'O';
	}
    for(int i = 0;i < k;i++) {
    	s2 += 'I';
	}
    for(int l = 0 ;l < s.size() ; l++) {
        int cnt1 = 0, cnt2 = 0;
        for(int r = l;r < s.size();r++) {
            if(s[r] == s2[cnt1]) {
               	cnt1++;
			} else {
				cnt2++;	
			}
            if(cnt1 == s2.size()) {
                ans = min(ans, cnt2);
                break;
            }
        }
    }
	if (ans == inf) ans = -1;
    cout << ans;
}
signed main() {
    ios::sync_with_stdio(false);
    cin.tie();
    cout.tie();
    int t = 1;
    //cin >> t;
    while (t--) {
    	solve();
	}
}

Compilation message (stderr)

ho_t2.cpp: In function 'void solve()':
ho_t2.cpp:26:22: 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]
   26 |     for(int l = 0 ;l < s.size() ; l++) {
      |                    ~~^~~~~~~~~~
ho_t2.cpp:28:25: 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]
   28 |         for(int r = l;r < s.size();r++) {
      |                       ~~^~~~~~~~~~
ho_t2.cpp:34:21: 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]
   34 |             if(cnt1 == s2.size()) {
      |                ~~~~~^~~~~~~~~~~~

• Subtask 1: 1 / 1
• Subtask 2: 12 / 12
• Subtask 3: 0 / 87