oj.uz

Submission #162041

# Submission time Handle Problem Language Result Execution time Memory
162041 2019-11-06T05:41:08 Z oolimry Gondola (IOI14_gondola) C++14
90 / 100
 1000 ms 5368 KB 
#include "gondola.h"
#include <bits/stdc++.h>
using namespace std;
long long mod = 1000000009;
int valid(int n, int arr[]) {
	set<int> sset;
    for(int i = 0;i < n;i++){
		sset.insert(arr[i]);
	}
	if(sset.size() != n) return 0;
	
	int anchor = -1;
	
	for(int i = 0;i < n;i++){
		if(arr[i] <= n){
			anchor = (arr[i] - i + n) % n;
			break;
		}
	}
	
	if(anchor == -1) return 1;
	
	for(int i = 0;i < n;i++){
		if(arr[i] <= n){
			if(arr[i] % n != (anchor + i) % n){
				return 0;
			}
		}
	}
	return 1;
}

int replacement(int n, int arr[], int replacementSeq[]) {
	
	int anchor = 0;
	int ori[n];
	map<int,int> m;
	set<int> s;
    for(int i = 0;i < n;i++){
		if(arr[i] <= n){
			anchor = (arr[i] - i + n) % n;
			break;
		}
	}
	
	int maxv = 0;
	int maxpos = 0;
	for(int i = 0;i < n;i++){
		ori[i] = (anchor+i) % n;
		if(ori[i] == 0) ori[i] = n;
		if(arr[i] > maxv){
			maxv = arr[i];
			maxpos = i;
		}
		if(arr[i] > n){
			m[arr[i]] = i;
		}
	}
	
	
	int cnt = 0;
	for(int r = n+1;r <= maxv;r++){
		int rindex = 0;
		if(m.find(r) == m.end()){
			rindex = maxpos;
		}
		else{
			rindex = m[r];
		}
		
		replacementSeq[cnt] = ori[rindex];
		ori[rindex] = r;
		cnt++; 
	}
	
	return cnt;
	
}

int countReplacement(int n, int arr[]) {
    if(!valid(n,arr)) return 0;
    long long ans = 1;
    int maxv = 0;
    int freee = n;
    set<int> s;
    bool has = true;
    for(int i = 0;i < n;i++){
		maxv = max(maxv, arr[i]);
		if(arr[i] <= n){
			freee--;
			has = false;
		}
		else{
			s.insert(arr[i]);
		}
	}
	
	for(int r = n+1;r <= maxv;r++){
		if(s.find(r) != s.end()){
			freee--;
		}
		else{
			ans *= freee;
			ans %= mod;
		}
	}
	if(has){
		ans *= n;
		ans %= mod;
	}
	return ans;
}

Compilation message

gondola.cpp: In function 'int valid(int, int*)':
gondola.cpp:10:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  if(sset.size() != n) return 0;
     ~~~~~~~~~~~~^~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 16 ms 2168 KB Output is correct
7 Correct 39 ms 3704 KB Output is correct
8 Correct 29 ms 3960 KB Output is correct
9 Correct 10 ms 1528 KB Output is correct
10 Correct 36 ms 4600 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 6 ms 256 KB Output is correct
6 Correct 16 ms 2296 KB Output is correct
7 Correct 39 ms 3684 KB Output is correct
8 Correct 29 ms 3960 KB Output is correct
9 Correct 10 ms 1516 KB Output is correct
10 Correct 38 ms 4640 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 21 ms 2168 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 51 ms 4700 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 3 ms 380 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 256 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 3 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 3 ms 376 KB Output is correct
11 Correct 12 ms 888 KB Output is correct
12 Correct 15 ms 1016 KB Output is correct
13 Correct 35 ms 2752 KB Output is correct
14 Correct 12 ms 888 KB Output is correct
15 Correct 36 ms 3064 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct

Subtask #8
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 320 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 504 KB Output is correct

Subtask #9
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 256 KB Output is correct
4 Correct 2 ms 256 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 256 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 85 ms 4600 KB Output is correct
10 Correct 59 ms 3832 KB Output is correct
11 Correct 28 ms 1656 KB Output is correct
12 Correct 29 ms 1912 KB Output is correct
13 Correct 12 ms 680 KB Output is correct

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 504 KB Output is correct
9 Correct 79 ms 4600 KB Output is correct
10 Correct 60 ms 3832 KB Output is correct
11 Correct 28 ms 1656 KB Output is correct
12 Correct 30 ms 1912 KB Output is correct
13 Correct 11 ms 632 KB Output is correct
14 Execution timed out 1071 ms 5368 KB Time limit exceeded
15 Halted 0 ms 0 KB -