oj.uz

Submission #535306

# Submission time Handle Problem Language Result Execution time Memory
535306 2022-03-10T01:46:02 Z Biaz JJOOII 2 (JOI20_ho_t2) C++17
100 / 100
 20 ms 2572 KB 
#include<bits/stdc++.h>
//#define int long long
#define pb push_back
#define ALL(x) x.begin(),x.end()
#define fi first
#define se second
#define ist insert
using namespace std;
int min(int a,int b){return a<b?a:b;}
int max(int a,int b){return a>b?a:b;}
typedef long long ll;
typedef pair<ll,ll> pii;
const int N=200005;
const int MOD=1000000007;//998244353
const int INF=2147483647;//1700000000000000000

int n,k;
string s;
vector<int> site[3];
int a[N];
vector<pii> dp[3];
bool vaild(){
    int cnt=0,typ=0;
    for (int i=0;i<n;i++){
        if (typ==0&&s[i]=='J') cnt++;
        if (typ==1&&s[i]=='O') cnt++;
        if (typ==2&&s[i]=='I') cnt++;
        if (cnt==k) cnt=0,typ++;
    }
    return typ==3;
}
int srch1(int x){
    int l=0,r=dp[0].size(),res=-1;
    while (r>=l){
        int mid=(l+r)/2;
        if (dp[0][mid].fi<x){
            res=mid;
            l=mid+1;
        }
        else r=mid-1;
    }
    return res;
}
int srch2(int x){
    int l=0,r=dp[2].size(),res=-1;
    while (r>=l){
        int mid=(l+r)/2;
        if (dp[2][mid].fi>x){
            res=mid;
            r=mid-1;
        }
        else l=mid+1;
    }
    return res;
}

inline void sol(){
    cin >>n>>k>>s;
    if (!vaild()){
        cout <<"-1\n";
        return;
    }
    for (int i=0;i<n;i++){
        if (s[i]=='J') a[i]=0;
        if (s[i]=='O') a[i]=1;
        if (s[i]=='I') a[i]=2;
        site[a[i]].pb(i);
    }
    int ans=INF,j=k-1;
    for (int t=k-1;t<site[0].size();t++){
            int i=t-k+1;
        while (j<site[2].size()&&(lower_bound(ALL(site[1]),site[2][j-k+1])-lower_bound(ALL(site[1]),site[0][t]))<k) j++;
        if (j==site[2].size()) break;
        ans=min(ans,site[2][j]-site[0][i]+1-(k*3));
        /*for (int j=k-1;j<site[2].size();j++){
            if ((lower_bound(ALL(site[1]),site[2][j-k+1])-lower_bound(ALL(site[1]),site[0][t]))<k||site[0][i]>site[2][j]) continue;
            //cout <<site[2][j]<<' '<<site[0][i]<<'\n';
            ans=min(ans,site[2][j]-site[0][i]+1-(k*3));
        }*/
    }
    cout <<ans<<'\n';
}
signed main(){
    int _=1;
    //cin >>_;
    while (_--) sol();
    return 0;
}

Compilation message

ho_t2.cpp: In function 'void sol()':
ho_t2.cpp:70:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   70 |     for (int t=k-1;t<site[0].size();t++){
      |                    ~^~~~~~~~~~~~~~~
ho_t2.cpp:72:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   72 |         while (j<site[2].size()&&(lower_bound(ALL(site[1]),site[2][j-k+1])-lower_bound(ALL(site[1]),site[0][t]))<k) j++;
      |                ~^~~~~~~~~~~~~~~
ho_t2.cpp:73:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   73 |         if (j==site[2].size()) break;
      |             ~^~~~~~~~~~~~~~~~

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 1 ms 304 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 0 ms 340 KB Output is correct
35 Correct 0 ms 340 KB Output is correct

Subtask #3
87.0 / 87.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 1 ms 304 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 1 ms 212 KB Output is correct
30 Correct 0 ms 212 KB Output is correct
31 Correct 0 ms 212 KB Output is correct
32 Correct 0 ms 212 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 0 ms 340 KB Output is correct
35 Correct 0 ms 340 KB Output is correct
36 Correct 17 ms 2108 KB Output is correct
37 Correct 17 ms 2456 KB Output is correct
38 Correct 17 ms 2476 KB Output is correct
39 Correct 18 ms 2500 KB Output is correct
40 Correct 15 ms 2528 KB Output is correct
41 Correct 17 ms 2468 KB Output is correct
42 Correct 20 ms 2432 KB Output is correct
43 Correct 7 ms 1624 KB Output is correct
44 Correct 9 ms 1876 KB Output is correct
45 Correct 12 ms 2484 KB Output is correct
46 Correct 11 ms 2572 KB Output is correct
47 Correct 11 ms 2508 KB Output is correct
48 Correct 11 ms 2520 KB Output is correct
49 Correct 3 ms 596 KB Output is correct
50 Correct 5 ms 612 KB Output is correct
51 Correct 5 ms 612 KB Output is correct
52 Correct 5 ms 612 KB Output is correct
53 Correct 5 ms 596 KB Output is correct
54 Correct 10 ms 2528 KB Output is correct
55 Correct 9 ms 2484 KB Output is correct
56 Correct 8 ms 2504 KB Output is correct