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Submission #818150

# Submission time Handle Problem Language Result Execution time Memory
818150 2023-08-10T02:48:23 Z makanhulia Gondola (IOI14_gondola) C++17
90 / 100
 16 ms 2276 KB 
#include "gondola.h"
#include<bits/stdc++.h>
using namespace std;
const int MAX=25e4;
int valid(int n, int a[]) {
  int next=-1, ret=0;
  vector<bool> occ(MAX+1);
  for(int i=0; i<n; i++) {
    if(occ[a[i]]) return 0;
    occ[a[i]]=1;
    if(next!=-1) next=next%n+1;
    if(a[i]<=0) return 0;
    if(a[i]<=n) {
      if(next==-1) next=a[i];
      if(a[i]!=next) return 0;
    }
  }
  return 1;
}
int replacement(int n, int a[], int b[]) {
  int idx=0, next=-1;
  priority_queue<pair<int, int>> pq;
  int init[n];
  for(int i=0; i<n; i++) {
    if(next!=-1) init[i]=next=next%n+1;
    else if(a[i]<=n) init[i]=next=a[i];
  }
  if(next==-1) next=n;
  for(int i=0; i<n; i++) init[i]=next=next%n+1;
  for(int i=0; i<n; i++)
    if(a[i]>n) pq.push({-a[i], init[i]});
  next=n+1;
  while(!pq.empty()) {
    int u=pq.top().first, v=pq.top().second;
    u=-u; b[idx++]=v;
    while(next<u) b[idx++]=next++;
    next++;
    pq.pop();
  }
  return idx;
}
const int MOD=1e9+9;
int binpow(int b, int exp) {
  long long base=b, ret=1;
  while(exp) {
    if(exp&1) ret=ret*base%MOD;
    base=base*base%MOD;
    exp>>=1;
  }
  return ret;
}
int countReplacement(int n, int a[]) {
  if(!valid(n, a)) return 0;
  long long ans=1;
  int las=n+1, cnt=0;
  priority_queue<int> pq;
  for(int i=0; i<n; i++)
    if(a[i]>n) pq.push(-a[i]), cnt++;
  while(!pq.empty()) {
    int u=-pq.top(); pq.pop();
    ans=ans*binpow(cnt, u-las)%MOD;
    las=u+1;
    cnt--;
  }
  bool nperm=0;
  for(int i=0; i<n; i++) if(a[i]<=n) nperm=1;
  return (nperm ? 1 : n)*ans%MOD;
}

Compilation message

gondola.cpp: In function 'int valid(int, int*)':
gondola.cpp:6:16: warning: unused variable 'ret' [-Wunused-variable]
    6 |   int next=-1, ret=0;
      |                ^~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 368 KB Output is correct
5 Correct 1 ms 340 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 3 ms 400 KB Output is correct
7 Correct 6 ms 564 KB Output is correct
8 Correct 5 ms 560 KB Output is correct
9 Correct 2 ms 340 KB Output is correct
10 Correct 11 ms 616 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 4 ms 468 KB Output is correct
7 Correct 7 ms 556 KB Output is correct
8 Correct 5 ms 596 KB Output is correct
9 Correct 2 ms 340 KB Output is correct
10 Correct 7 ms 568 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 0 ms 340 KB Output is correct
13 Correct 3 ms 468 KB Output is correct
14 Correct 0 ms 264 KB Output is correct
15 Correct 7 ms 596 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 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

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 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 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 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 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 6 ms 848 KB Output is correct
12 Correct 10 ms 1000 KB Output is correct
13 Correct 13 ms 1380 KB Output is correct
14 Correct 6 ms 852 KB Output is correct
15 Correct 16 ms 2276 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 304 KB Output is correct
3 Correct 0 ms 340 KB Output is correct

Subtask #8
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct

Subtask #9
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 340 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 340 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 12 ms 980 KB Output is correct
10 Correct 10 ms 904 KB Output is correct
11 Correct 5 ms 596 KB Output is correct
12 Correct 5 ms 596 KB Output is correct
13 Correct 2 ms 340 KB Output is correct

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 16 ms 1160 KB Output is correct
10 Correct 11 ms 852 KB Output is correct
11 Correct 5 ms 700 KB Output is correct
12 Correct 5 ms 596 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Runtime error 8 ms 1048 KB Execution killed with signal 11
15 Halted 0 ms 0 KB -