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Submission #1096561

# Submission time Handle Problem Language Result Execution time Memory
1096561 2024-10-04T18:30:34 Z Tymond Gondola (IOI14_gondola) C++17
90 / 100
 1000 ms 6612 KB 
#include <bits/stdc++.h>
#include "gondola.h"
using namespace std;
using ll = long long;
using ld = long double;
#define fi first
#define se second
#define vi vector<int>
#define vll vector<long long>
#define pii pair<int, int>
#define pll pair<long long, long long>
#define pb push_back
#define mp make_pair
#define eb emplace_back
#define all(x) (x).begin(), (x).end()
#define sz(x) (int)(x).size()
mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
mt19937_64 rng64(chrono::high_resolution_clock::now().time_since_epoch().count());
inline int rand(int l,int r){return uniform_int_distribution<int>(l, r)(rng);}
inline ll rand(ll l,ll r){return uniform_int_distribution<ll>(l, r)(rng64);}
#ifdef DEBUG
auto&operator<<(auto&o,pair<auto,auto>p){return o<<"("<<p.first<<", "<<p.second<<")";}
auto operator<<(auto&o,auto x)->decltype(x.end(),o){o<<"{";int i=0;for(auto e:x)o<<","+!i++<<e;return o<<"}";}
#define debug(X...)cerr<<"["#X"]: ",[](auto...$){((cerr<<$<<"; "),...)<<endl;}(X)
#else
#define debug(...){}
#endif
 
struct custom_hash {
    static uint64_t splitmix64(uint64_t x) {
        x += 0x9e3779b97f4a7c15;
        x = (x ^ (x >> 30)) * 0xbf58476d1ce4e5b9;
        x = (x ^ (x >> 27)) * 0x94d049bb133111eb;
        return x ^ (x >> 31);
    }
 
    size_t operator()(uint64_t x) const {
        static const uint64_t FIXED_RANDOM = chrono::steady_clock::now().time_since_epoch().count();
        return splitmix64(x + FIXED_RANDOM);
    }
};

int valid(int n, int inputSeq[]){
    vi a;
    vi vec;
    map<int, int> cnt;
    pii mn = {10000000, 0};
    for(int i = 0; i < n; i++){
        a.pb(inputSeq[i]);
        cnt[a[i]]++;
        if(a[i] < mn.fi){
            mn.fi = a[i];
            mn.se = i;
        }
    }

    for(auto ele : cnt){
        if(ele.se > 1){
            return 0;
        }
    }

    vi na;
    for(int i = mn.se; i < n; i++){
        na.pb(a[i]);
    }
    for(int i = 0; i < mn.se; i++){
        na.pb(a[i]);
    }
    a = na;
    for(int i = 0; i < n; i++){
        if(a[i] <= n){
            vec.pb(i);
        }
    }

    if(sz(vec) <= 1){
        return 1;
    }

    for(int i = 0; i + 1 < sz(vec); i++){
        if(a[vec[i + 1]] <= a[vec[i]]){
            return 0;
        }

        if(vec[i + 1] - vec[i] != a[vec[i + 1]] - a[vec[i]]){
            return 0;
        }
    }

    if(n - vec.back() - 1 != (n - a[vec.back()] + a[vec[0]] - 1)){
        return 0;
    }
    return 1;
}

//----------------------
const int INF = 1e9;

int replacement(int n, int gondolaSeq[], int replacementSeq[]){
    int l = 0;
    vi a;
    set<pii> x;
    pii mn = {INF, 0};
    for(int i = 0; i < n; i++){
        a.pb(gondolaSeq[i]);
        if(a[i] > n){
            x.insert({a[i], i});
        }
        
        if(a[i] < mn.fi){
            mn.fi = a[i];
            mn.se = i;
        }
    }

    vi p;
    int ok = n + 1;
   // cout << mn.fi << ' ' << mn.se << '\n';
    while(sz(x)){
        pii akt = *(x.begin());
        x.erase(x.begin());

        int our;
        if(mn.fi > n){
            our = akt.se + 1;
        }else if(akt.se >= mn.se){
            our = mn.fi + akt.se - mn.se;
            if(our > n){
                our -= n;
            }
        }else{
            our = mn.fi + n - mn.se + akt.se;
            while(our > n){
                our -= n;
            }
        }
        //cout << akt.se << ' ' << our << '\n';
        p.pb(our);
        our = ok;
        while(our < akt.fi){
            p.pb(our);
            our++;
        }

        ok = our + 1;
    }

    l = sz(p);
    for(int i = 0; i < l; i++){
        replacementSeq[i] = p[i];
    }
    return l;
}

//----------------------

const int MOD = 1e9 + 9;
int countReplacement(int n, int inputSeq[]){
    if(!valid(n, inputSeq)){
        return 0;
    }

    vi a;
    pii mn = {INF, 0};
    for(int i = 0; i < n; i++){
        a.pb(inputSeq[i]);
        if(a[i] < mn.fi){
            mn.fi = a[i];
            mn.se = i;
        }
    }

    ll ans = 1LL;
    if(mn.fi > n){
        ans = n;
    }

    set<pii> s;
    for(int i = 0; i < n; i++){
        if(a[i] > n){
            s.insert({a[i], i});
        }
    }

    int u = n + 1;
    while(sz(s)){
        pii akt = *s.begin();
        s.erase(s.begin());
        
        while(u < akt.fi){
            ans = (ll)ans * (sz(s) +1);
            ans %= MOD;
            u++;
        }
        u++;
    }

    return (int)ans;
}

/*int main(){
    int S[7] = {9, 8, 17, 12, 13, 16, 10};
    cout<<countReplacement(7, S) << '\n';
    return 0;
}*/

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 9 ms 2908 KB Output is correct
7 Correct 23 ms 4048 KB Output is correct
8 Correct 23 ms 5304 KB Output is correct
9 Correct 6 ms 1884 KB Output is correct
10 Correct 19 ms 5960 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 8 ms 2868 KB Output is correct
7 Correct 23 ms 4048 KB Output is correct
8 Correct 16 ms 5460 KB Output is correct
9 Correct 5 ms 1880 KB Output is correct
10 Correct 19 ms 5940 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 12 ms 2696 KB Output is correct
14 Correct 1 ms 344 KB Output is correct
15 Correct 31 ms 5972 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 6 ms 1240 KB Output is correct
12 Correct 6 ms 1240 KB Output is correct
13 Correct 14 ms 2868 KB Output is correct
14 Correct 8 ms 1240 KB Output is correct
15 Correct 18 ms 3084 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct

Subtask #8
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct

Subtask #9
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 39 ms 5588 KB Output is correct
10 Correct 36 ms 4560 KB Output is correct
11 Correct 13 ms 1880 KB Output is correct
12 Correct 19 ms 2140 KB Output is correct
13 Correct 4 ms 860 KB Output is correct

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 40 ms 5712 KB Output is correct
10 Correct 30 ms 4540 KB Output is correct
11 Correct 13 ms 1884 KB Output is correct
12 Correct 15 ms 2140 KB Output is correct
13 Correct 4 ms 860 KB Output is correct
14 Execution timed out 1096 ms 6612 KB Time limit exceeded
15 Halted 0 ms 0 KB -