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Submission #974649

# Submission time Handle Problem Language Result Execution time Memory
974649 2024-05-03T15:03:37 Z hariaakas646 Gondola (IOI14_gondola) C++14
100 / 100
 50 ms 6152 KB 
#include "gondola.h"
#include <bits/stdc++.h>

using namespace std;

#define scd(t) scanf("%d", &t)
#define sclld(t) scanf("%lld", &t)
#define forr(i, j, k) for (int i = j; i < k; i++)
#define frange(i, j) forr(i, 0, j)
#define all(cont) cont.begin(), cont.end()
#define mp make_pair
#define pb push_back
#define f first
#define s second
typedef long long int lli;
typedef pair<int, int> pii;
typedef vector<int> vi;
typedef vector<bool> vb;
typedef vector<lli> vll;
typedef vector<string> vs;
typedef vector<pii> vii;
typedef vector<vi> vvi;
typedef map<int, int> mpii;
typedef set<int> seti;
typedef multiset<int> mseti;
typedef long double ld;

int valid(int n, int inputSeq[])
{
  pii mi = mp(2e9, 1e9);
  seti st;
  frange(i, n) {
    mi = min(mi, mp(inputSeq[i], i));
    st.insert(inputSeq[i]);
  }
  if(st.size() != n) return 0;
  if(mi.f > n) return 1;
  int v = mi.f;
  forr(i, mi.s, n) {
    if(inputSeq[i] <= n) {
      if(inputSeq[i] != v) return 0;
    }
    v++;
  }
  forr(i, 0, mi.s) {
    if(inputSeq[i] <= n) {
      if(inputSeq[i] != v) return 0;
    }
    v++;
  }
  return 1;
}

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

int replacement(int n, int inputSeq[], int replacementSeq[])
{
  pii mi = mp(2e9, 1e9);
  int ma = 0;
  vi pos(3e5+1, -1);
  frange(i, n) {
    mi = min(mi, mp(inputSeq[i], i));
    ma = max(ma, inputSeq[i]);
    pos[inputSeq[i]] = i;
  }
  
  if(mi.f > n) {
    int v = pos[ma]+1;
    pos[ma] = -1;
    forr(i, n+1, ma+1) {
      if(pos[i] == -1) {
        replacementSeq[i-(n+1)] = v;
        v = i;
      }
      else {
        replacementSeq[i-(n+1)] = pos[i]+1;
      }
    }
  }
  else {
    vi val(n);
    int v1 = mi.f;
    frange(i, n) {
      val[i] = ((v1-1) + (i-mi.s) + n) % n + 1; 
      // printf("%d ", val[i]);
    }

    int v = val[pos[ma]];
    pos[ma] = -1;
    forr(i, n+1, ma+1) {
      // printf("%d\n", i);
      if(pos[i] == -1) {
        // printf("%d\n", v);
        replacementSeq[i-(n+1)] = v;
        v = i;
      }
      else {

        replacementSeq[i-(n+1)] = val[pos[i]];
      }
    }

  }
  return ma-n;
}

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

const lli mod = 1e9 + 9;

lli modexp(lli x, int c) {
  if(c == 0) return 1;
  lli v = modexp(x, c/2);
  v = v*v%mod;
  if(c%2) return v*x%mod;
  else return v;
}

int countReplacement(int n, int inputSeq[])
{
  
  if(!valid(n, inputSeq)) return 0;
  lli out = 1;
  int ma = 0;
  int mi = 2e9;
  int c = n;
  seti st;
  frange(i, n) {mi = min(mi, inputSeq[i]); if(inputSeq[i] > n) st.insert(inputSeq[i]);}
  
  if(mi > n) {
    out = n;
  }
  frange(i, n) {
    if(inputSeq[i] <= n) c--;
  }
  int pre = n;
  for(auto e : st) {
    out = out * modexp(c, e-pre-1) % mod;
    c--;
    pre = e;
  }
  
  return out;
}

Compilation message

gondola.cpp: In function 'int valid(int, int*)':
gondola.cpp:36:16: warning: comparison of integer expressions of different signedness: 'std::set<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   36 |   if(st.size() != n) return 0;
      |      ~~~~~~~~~~^~~~
gondola.cpp: In function 'int countReplacement(int, int*)':
gondola.cpp:124:7: warning: unused variable 'ma' [-Wunused-variable]
  124 |   int ma = 0;
      |       ^~

Subtask #1
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 0 ms 348 KB Output is correct

Subtask #2
5.0 / 5.0

# 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 1 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 8 ms 2136 KB Output is correct
7 Correct 21 ms 3672 KB Output is correct
8 Correct 15 ms 3928 KB Output is correct
9 Correct 5 ms 1368 KB Output is correct
10 Correct 20 ms 4544 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 512 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 8 ms 2140 KB Output is correct
7 Correct 20 ms 3676 KB Output is correct
8 Correct 16 ms 3848 KB Output is correct
9 Correct 6 ms 1368 KB Output is correct
10 Correct 21 ms 4692 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 9 ms 2000 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 24 ms 4688 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1624 KB Output is correct
2 Correct 1 ms 1628 KB Output is correct
3 Correct 1 ms 1628 KB Output is correct
4 Correct 1 ms 1624 KB Output is correct
5 Correct 1 ms 1372 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1628 KB Output is correct
2 Correct 1 ms 1628 KB Output is correct
3 Correct 1 ms 1372 KB Output is correct
4 Correct 1 ms 1372 KB Output is correct
5 Correct 1 ms 1372 KB Output is correct
6 Correct 1 ms 1628 KB Output is correct
7 Correct 1 ms 1628 KB Output is correct
8 Correct 1 ms 1628 KB Output is correct
9 Correct 1 ms 1628 KB Output is correct
10 Correct 1 ms 1628 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1628 KB Output is correct
2 Correct 1 ms 1628 KB Output is correct
3 Correct 1 ms 1372 KB Output is correct
4 Correct 1 ms 1628 KB Output is correct
5 Correct 1 ms 1372 KB Output is correct
6 Correct 1 ms 1368 KB Output is correct
7 Correct 1 ms 1628 KB Output is correct
8 Correct 1 ms 1628 KB Output is correct
9 Correct 1 ms 1624 KB Output is correct
10 Correct 2 ms 1624 KB Output is correct
11 Correct 7 ms 2140 KB Output is correct
12 Correct 7 ms 2136 KB Output is correct
13 Correct 9 ms 2140 KB Output is correct
14 Correct 6 ms 2140 KB Output is correct
15 Correct 15 ms 2396 KB Output is correct

Subtask #7
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 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 1 ms 348 KB Output is correct

Subtask #9
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 344 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 1 ms 348 KB Output is correct
9 Correct 33 ms 3932 KB Output is correct
10 Correct 25 ms 3420 KB Output is correct
11 Correct 11 ms 1372 KB Output is correct
12 Correct 12 ms 1744 KB Output is correct
13 Correct 3 ms 604 KB Output is correct

Subtask #10
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 1 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 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 36 ms 4096 KB Output is correct
10 Correct 26 ms 3420 KB Output is correct
11 Correct 10 ms 1372 KB Output is correct
12 Correct 12 ms 1628 KB Output is correct
13 Correct 3 ms 968 KB Output is correct
14 Correct 45 ms 4436 KB Output is correct
15 Correct 50 ms 6152 KB Output is correct
16 Correct 8 ms 1624 KB Output is correct
17 Correct 33 ms 4176 KB Output is correct
18 Correct 21 ms 2592 KB Output is correct