This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define ll long long
#define pii pair <int, int>
#define pb push_back
#define mp make_pair
#define dbg puts("dbg");
#define outp(x) cout << #x << " = " << (x) << endl
#define all(x) (x).begin(), (x).end()
#define test int t; cin >> t; while(t--){solve();}
#define MOD 998244353
int fpb(int a,int b){if(b == 0){return a;}return fpb(b, a%b);}
int kpk(int a,int b){return (a*b)/fpb(a, b);}
int n, k, indeksJ, indeksO, indeksI, mini = 1e9;
string S;
vector <int> J, O, I;
void solve(){
cin >> n >> k;
cin >> S;
for(int i=0; i<S.length(); i++){
if(S[i] == 'J') J.pb(i);
else if(S[i] == 'O') O.pb(i);
else I.pb(i);
}
while(indeksJ < J.size() && indeksO < O.size() && indeksI < I.size()){
int awalJ, awalO, awalI;
int akhirJ, akhirO, akhirI;
if(indeksJ+k-1 >= J.size()) break;
awalJ = J[indeksJ];
akhirJ = J[indeksJ+k-1];
while(O[indeksO] < akhirJ) indeksO++;
if(indeksO+k-1 >= O.size()) break;
awalO = O[indeksO];
akhirO = O[indeksO+k-1];
while(I[indeksI] < akhirO) indeksI++;
if(indeksI+k-1 >= I.size()) break;
awalI = I[indeksI];
akhirI = I[indeksI+k-1];
int hapus = akhirI - awalJ + 1 - 3*k;
mini = min(mini, hapus);
indeksJ++;
}
cout << ((mini != 1e9)?mini:-1) << endl;
}
int32_t main() {
ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
solve();
return 0;
}
Compilation message (stderr)
ho_t2.cpp: In function 'void solve()':
ho_t2.cpp:23:19: 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]
23 | for(int i=0; i<S.length(); i++){
| ~^~~~~~~~~~~
ho_t2.cpp:28:19: 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]
28 | while(indeksJ < J.size() && indeksO < O.size() && indeksI < I.size()){
| ~~~~~~~~^~~~~~~~~~
ho_t2.cpp:28:41: 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]
28 | while(indeksJ < J.size() && indeksO < O.size() && indeksI < I.size()){
| ~~~~~~~~^~~~~~~~~~
ho_t2.cpp:28:63: 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]
28 | while(indeksJ < J.size() && indeksO < O.size() && indeksI < I.size()){
| ~~~~~~~~^~~~~~~~~~
ho_t2.cpp:31:24: 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]
31 | if(indeksJ+k-1 >= J.size()) break;
| ~~~~~~~~~~~~^~~~~~~~~~~
ho_t2.cpp:35:24: 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]
35 | if(indeksO+k-1 >= O.size()) break;
| ~~~~~~~~~~~~^~~~~~~~~~~
ho_t2.cpp:39:24: 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]
39 | if(indeksI+k-1 >= I.size()) break;
| ~~~~~~~~~~~~^~~~~~~~~~~
ho_t2.cpp:29:20: warning: variable 'awalO' set but not used [-Wunused-but-set-variable]
29 | int awalJ, awalO, awalI;
| ^~~~~
ho_t2.cpp:29:27: warning: variable 'awalI' set but not used [-Wunused-but-set-variable]
29 | int awalJ, awalO, awalI;
| ^~~~~
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