Submission #212523

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
212523	2020-03-23 11:36:25	DystoriaX	JJOOII 2 (JOI20_ho_t2)	C++14	100 / 100	18 ms	2676 KiB

ho_t2

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#include <bits/stdc++.h>
using namespace std;
int n, k;
char s[200010];
vector<int> J, O, I;
int lf[200010];
int ans = 1e9;
int main(){
    scanf("%d%d", &n, &k);
    scanf(" %s", s + 1);
    for(int i = 1; i <= n; i++){
        if(s[i] == 'J') J.emplace_back(i);
        if(s[i] == 'O') O.emplace_back(i);
        if(s[i] == 'I') I.emplace_back(i);
    }
    for(int i = k - 1; i < (int) J.size(); i++){
        lf[J[i]] = J[i - k + 1];
    }
    for(int i = k - 1; i < (int) O.size(); i++){
        auto it = upper_bound(J.begin(), J.end(), O[i - k + 1]);
        if(it == J.begin()) continue;
        --it;
 
 
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Compilation message (stderr)

ho_t2.cpp: In function 'int main()':
ho_t2.cpp:12:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d", &n, &k);
     ~~~~~^~~~~~~~~~~~~~~~
ho_t2.cpp:13:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf(" %s", s + 1);
     ~~~~~^~~~~~~~~~~~~~

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