oj.uz

Submission #535304

# Submission time Handle Problem Language Result Execution time Memory
535304 2022-03-10T01:43:20 Z Biaz JJOOII 2 (JOI20_ho_t2) C++17
13 / 100
 2000 ms 2012 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;
    for (int t=k-1;t<site[0].size();t++){
            int i=t-k+1;
        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:72:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   72 |         for (int j=k-1;j<site[2].size();j++){
      |                        ~^~~~~~~~~~~~~~~

Subtask #1
1.0 / 1.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 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 0 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 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 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 0 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 29 ms 320 KB Output is correct
16 Correct 41 ms 320 KB Output is correct
17 Correct 37 ms 340 KB Output is correct
18 Correct 10 ms 344 KB Output is correct
19 Correct 44 ms 348 KB Output is correct
20 Correct 40 ms 340 KB Output is correct
21 Correct 29 ms 340 KB Output is correct
22 Correct 14 ms 344 KB Output is correct
23 Correct 5 ms 212 KB Output is correct
24 Correct 18 ms 340 KB Output is correct
25 Correct 16 ms 340 KB Output is correct
26 Correct 16 ms 340 KB Output is correct
27 Correct 19 ms 340 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 0 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 19 ms 340 KB Output is correct
34 Correct 9 ms 340 KB Output is correct
35 Correct 0 ms 340 KB Output is correct

Subtask #3
0 / 87.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 0 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 0 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 29 ms 320 KB Output is correct
16 Correct 41 ms 320 KB Output is correct
17 Correct 37 ms 340 KB Output is correct
18 Correct 10 ms 344 KB Output is correct
19 Correct 44 ms 348 KB Output is correct
20 Correct 40 ms 340 KB Output is correct
21 Correct 29 ms 340 KB Output is correct
22 Correct 14 ms 344 KB Output is correct
23 Correct 5 ms 212 KB Output is correct
24 Correct 18 ms 340 KB Output is correct
25 Correct 16 ms 340 KB Output is correct
26 Correct 16 ms 340 KB Output is correct
27 Correct 19 ms 340 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 0 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 19 ms 340 KB Output is correct
34 Correct 9 ms 340 KB Output is correct
35 Correct 0 ms 340 KB Output is correct
36 Execution timed out 2068 ms 2012 KB Time limit exceeded
37 Halted 0 ms 0 KB -