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Submission #250686

# Submission time Handle Problem Language Result Execution time Memory
250686 2020-07-18T17:37:28 Z hhh07 Gondola (IOI14_gondola) C++14
100 / 100
 30 ms 2804 KB 
#include <iostream>
#include <vector>
#include <algorithm>
#include <queue>
#include <utility>
#include <set>
#include <cmath>
#include <climits>
#include <cstring>
#include <stdio.h>
#include <assert.h>
#include "gondola.h"
 
using namespace std;
 
typedef long long ll;
typedef vector<ll> vi;
typedef pair<ll, ll> ii;

ll MOD = 1e9 + 9;

ll stepen(ll x, int st){
    ll res = 1;
    while(st > 0){
        if (st&1)
            res = (1LL)*(res*x)%MOD;
        x = (1LL)*(x*x)%MOD;
        st /= 2;
    }
    return res;
}

int valid(int n, int x[]){
    int j = -1;
    for (int i = 0; i < n; i++){
        if (x[i] > n)
            continue;
        j = i;
        break;
    }
    for (int i = 0; i < n; i++){
        if (j > i){
            int moze = x[j] - (j - i);
            if (moze < 1)
                moze += n;
            if (x[i] <= n && moze != x[i]){
                return false;
            }
        }
        else{
            int moze = x[j] + (i - j);
            if (moze > n)
                moze -= n;
            if (x[i] <= n && moze != x[i]){
                return false;
            }
        }
    }
    sort(x, x + n);
    for (int i = 1; i < n; i++)
        if (x[i] == x[i - 1])
            return false;
    return true;
}

int replacement(int n, int x[], int y[]){
    vector<ii> t;
    int j = 0;
    for (int i = 0; i < n; i++){
        if (x[i] > n)
            t.push_back(make_pair(x[i], i));
        else
            j = i;
    }
    
    sort(t.begin(), t.end());
    if (t.size() == n)
        x[0] = 1;
    for (int i = 0; i < n; i++){
        if (j > i){
            int moze = x[j] - (j - i);
            if (moze < 1)
                moze += n;
            x[i] = moze;
        }
        else{
            int moze = x[j] + (i - j);
            if (moze > n)
                moze -= n;
            x[i] = moze;
        }
    }
    vi res;
    int k = n;
    for (int i = 0; i < t.size(); i++){
        int curr = t[i].first, idx = t[i].second;
        res.push_back(x[idx]);
        for (int j = k + 1; j < curr; j++)
            res.push_back(j);
        k = curr;
    }
    for (int i = 0; i < res.size(); i++)
        y[i] = res[i];
    return res.size();
}


int countReplacement(int n, int x[]){
    bool k = valid(n, x);
    if (!k)
        return 0;
    vi t;
    for (int i = 0; i < n; i++)
        if (x[i] > n)
            t.push_back(x[i]);

    sort(t.begin(), t.end());
    ll res = 1;
    int prev = n;
    for (int i = 0; i < t.size(); i++){
        res *= stepen(t.size() - i, t[i] - prev - 1);
        res = res%MOD;
        prev = t[i];
    }
    if (t.size() == n){
        res *= n;
        res = res%MOD;
    }
    return res;
}

Compilation message

gondola.cpp: In function 'int replacement(int, int*, int*)':
gondola.cpp:77:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if (t.size() == n)
         ~~~~~~~~~^~~~
gondola.cpp:95:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < t.size(); i++){
                     ~~^~~~~~~~~~
gondola.cpp:102:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < res.size(); i++)
                     ~~^~~~~~~~~~~~
gondola.cpp: In function 'int countReplacement(int, int*)':
gondola.cpp:120:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0; i < t.size(); i++){
                     ~~^~~~~~~~~~
gondola.cpp:125:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if (t.size() == n){
         ~~~~~~~~~^~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 0 ms 384 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 8 ms 512 KB Output is correct
7 Correct 15 ms 768 KB Output is correct
8 Correct 13 ms 640 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 18 ms 640 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 8 ms 512 KB Output is correct
7 Correct 13 ms 640 KB Output is correct
8 Correct 13 ms 640 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 17 ms 640 KB Output is correct
11 Correct 0 ms 256 KB Output is correct
12 Correct 0 ms 256 KB Output is correct
13 Correct 6 ms 512 KB Output is correct
14 Correct 0 ms 256 KB Output is correct
15 Correct 14 ms 640 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 256 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 1 ms 512 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 512 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 2 ms 512 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 512 KB Output is correct
11 Correct 17 ms 640 KB Output is correct
12 Correct 16 ms 640 KB Output is correct
13 Correct 17 ms 2040 KB Output is correct
14 Correct 11 ms 640 KB Output is correct
15 Correct 25 ms 2804 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 384 KB Output is correct

Subtask #8
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 256 KB Output is correct
7 Correct 0 ms 256 KB Output is correct
8 Correct 0 ms 384 KB Output is correct

Subtask #9
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 256 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 256 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 20 ms 1276 KB Output is correct
10 Correct 17 ms 1148 KB Output is correct
11 Correct 6 ms 768 KB Output is correct
12 Correct 8 ms 872 KB Output is correct
13 Correct 2 ms 512 KB Output is correct

Subtask #10
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 256 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 256 KB Output is correct
4 Correct 0 ms 256 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 1 ms 256 KB Output is correct
7 Correct 0 ms 256 KB Output is correct
8 Correct 0 ms 256 KB Output is correct
9 Correct 19 ms 1276 KB Output is correct
10 Correct 16 ms 1148 KB Output is correct
11 Correct 7 ms 844 KB Output is correct
12 Correct 9 ms 768 KB Output is correct
13 Correct 2 ms 512 KB Output is correct
14 Correct 26 ms 1784 KB Output is correct
15 Correct 30 ms 2800 KB Output is correct
16 Correct 6 ms 896 KB Output is correct
17 Correct 20 ms 1908 KB Output is correct
18 Correct 11 ms 1532 KB Output is correct