Submission #292142

#	Time	Username	Problem	Language	Result	Execution time	Memory
292142		mat_v	Gondola (IOI14_gondola)	C++14	60 / 100	28 ms	2512 KiB

gondola

#include "gondola.h"
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/rope>

#define ff(i,a,b) for(int (i) = (a); (i) <= (b); ++(i))
#define fb(i,a,b) for(int (i) = (a); (i) >= (b); --(i))
#define mod 1000000009
#define xx first
#define yy second
#define all(a) (a).begin(), (a).end()
#define pb push_back
#define ll long long
#define pii pair<int,int>


using namespace std;
using namespace __gnu_pbds;
typedef tree<int, null_type, less<int>,rb_tree_tag, tree_order_statistics_node_update> ordered_set;/// find_by_order(x)(x+1th) , order_of_key() (strictly less)
mt19937 rnd(chrono::steady_clock::now().time_since_epoch().count());

int tmp[250005];

int valid(int n, int inputSeq[])
{
    vector<int> svi;
    ff(i,0,n - 1)svi.pb(inputSeq[i]);
    sort(svi.begin(), svi.end());
    ff(i,0,n - 2)if(svi[i] == svi[i + 1])return 0;

    int gde = -1;
    ff(i,0,n - 1){
        if(inputSeq[i] <= n){
            gde = i;
            break;
        }
    }
    if(gde == -1)return 1;
    ff(i,gde,gde+n-1){
        tmp[i%n] = inputSeq[gde] + i - gde;
        if(tmp[i%n] > n)tmp[i%n] -= n;
    }
    ff(i,0,n - 1){
        if(inputSeq[i] <= n && inputSeq[i] != tmp[i])return 0;
    }
    return 1;
}

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

int niz[250005];
bool use[250005];
int poz[250005];

int replacement(int n, int gondolaSeq[], int replacementSeq[])
{
    ff(i,0,n - 1)niz[i] = gondolaSeq[i];
    int gde = 0;
    int val = 1;
    ff(i,0,n - 1){
        if(niz[i] <= n){
            gde = i;
            val = niz[i];
            break;
        }
    }
    ff(i,gde,gde+n-1){
        tmp[i%n] = val + i - gde;
        if(tmp[i%n] > n)tmp[i%n] -= n;
    }
    //ff(i,0,n - 1)cout << tmp[i] << " ";
    int tr = n+1;
    priority_queue<pii>pq;
    ff(i,0,n - 1){
        if(niz[i] > n){
            pq.push({-niz[i], i});
        }
    }
    vector<int> sol;
    while(!pq.empty()){
        pii sta = pq.top();
        pq.pop();
        int koji = sta.yy;
        int broj = -sta.xx;
        while(tr <= broj){
            sol.pb(tmp[koji]);
            tmp[koji] = tr;
            tr++;
        }
    }
    int m = sol.size();
    ff(i,0,m - 1){
        replacementSeq[i] = sol[i];
    }
    return m;
}

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

ll add(ll x, ll y){
    return (x + y) % mod;
}
ll mul(ll x, ll y){
    return (x * y) % mod;
}
ll power(ll x, ll y){
    if(y == 0)return 1;
    ll pola = power(x, y/2);
    pola = mul(pola, pola);
    if(y%2 == 1)pola = mul(pola, x);
    return pola;
}


int countReplacement(int n, int inputSeq[]){
    if(valid(n, inputSeq) == 0)return 0;
    sort(inputSeq, inputSeq + n);
    ll pom = 1;
    ff(i,1,n)pom = mul(pom, i);
    ff(i,0,n - 1)if(inputSeq[i] <= n)pom = 1;
    int tr = n+1;
    ll ans = 1;
    int poc = 0;
    while(poc < n && inputSeq[poc] <= n)poc++;
    ff(i,poc,n - 1){
        ll kol = n - poc;
        ll raz = inputSeq[i] - tr;
        ans = mul(ans, power(kol, raz));
        tr = inputSeq[i] + 1;
    }
    ans = mul(ans, pom);
    return ans;
}

Compilation message (stderr)

gondola.cpp: In function 'int valid(int, int*)':
gondola.cpp:7:27: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
    7 | #define ff(i,a,b) for(int (i) = (a); (i) <= (b); ++(i))
      |                           ^
gondola.cpp:28:5: note: in expansion of macro 'ff'
   28 |     ff(i,0,n - 1)svi.pb(inputSeq[i]);
      |     ^~
gondola.cpp:7:27: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
    7 | #define ff(i,a,b) for(int (i) = (a); (i) <= (b); ++(i))
      |                           ^
gondola.cpp:30:5: note: in expansion of macro 'ff'
   30 |     ff(i,0,n - 2)if(svi[i] == svi[i + 1])return 0;
      |     ^~
gondola.cpp:7:27: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
    7 | #define ff(i,a,b) for(int (i) = (a); (i) <= (b); ++(i))
      |                           ^
gondola.cpp:33:5: note: in expansion of macro 'ff'
   33 |     ff(i,0,n - 1){
      |     ^~
gondola.cpp:7:27: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
    7 | #define ff(i,a,b) for(int (i) = (a); (i) <= (b); ++(i))
      |                           ^
gondola.cpp:40:5: note: in expansion of macro 'ff'
   40 |     ff(i,gde,gde+n-1){
      |     ^~
gondola.cpp:7:27: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
    7 | #define ff(i,a,b) for(int (i) = (a); (i) <= (b); ++(i))
      |                           ^
gondola.cpp:44:5: note: in expansion of macro 'ff'
   44 |     ff(i,0,n - 1){
      |     ^~
gondola.cpp: In function 'int replacement(int, int*, int*)':
gondola.cpp:7:27: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
    7 | #define ff(i,a,b) for(int (i) = (a); (i) <= (b); ++(i))
      |                           ^
gondola.cpp:58:5: note: in expansion of macro 'ff'
   58 |     ff(i,0,n - 1)niz[i] = gondolaSeq[i];
      |     ^~
gondola.cpp:7:27: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
    7 | #define ff(i,a,b) for(int (i) = (a); (i) <= (b); ++(i))
      |                           ^
gondola.cpp:61:5: note: in expansion of macro 'ff'
   61 |     ff(i,0,n - 1){
      |     ^~
gondola.cpp:7:27: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
    7 | #define ff(i,a,b) for(int (i) = (a); (i) <= (b); ++(i))
      |                           ^
gondola.cpp:68:5: note: in expansion of macro 'ff'
   68 |     ff(i,gde,gde+n-1){
      |     ^~
gondola.cpp:7:27: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
    7 | #define ff(i,a,b) for(int (i) = (a); (i) <= (b); ++(i))
      |                           ^
gondola.cpp:75:5: note: in expansion of macro 'ff'
   75 |     ff(i,0,n - 1){
      |     ^~
gondola.cpp:7:27: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
    7 | #define ff(i,a,b) for(int (i) = (a); (i) <= (b); ++(i))
      |                           ^
gondola.cpp:93:5: note: in expansion of macro 'ff'
   93 |     ff(i,0,m - 1){
      |     ^~
gondola.cpp: In function 'int countReplacement(int, int*)':
gondola.cpp:7:27: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
    7 | #define ff(i,a,b) for(int (i) = (a); (i) <= (b); ++(i))
      |                           ^
gondola.cpp:120:5: note: in expansion of macro 'ff'
  120 |     ff(i,1,n)pom = mul(pom, i);
      |     ^~
gondola.cpp:7:27: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
    7 | #define ff(i,a,b) for(int (i) = (a); (i) <= (b); ++(i))
      |                           ^
gondola.cpp:121:5: note: in expansion of macro 'ff'
  121 |     ff(i,0,n - 1)if(inputSeq[i] <= n)pom = 1;
      |     ^~
gondola.cpp:7:27: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
    7 | #define ff(i,a,b) for(int (i) = (a); (i) <= (b); ++(i))
      |                           ^
gondola.cpp:126:5: note: in expansion of macro 'ff'
  126 |     ff(i,poc,n - 1){
      |     ^~

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 10 / 10
• Subtask 4: 5 / 5
• Subtask 5: 10 / 10
• Subtask 6: 20 / 20
• Subtask 7: 5 / 5
• Subtask 8: 0 / 15
• Subtask 9: 0 / 15
• Subtask 10: 0 / 10