oj.uz

Submission #1063723

# Submission time Handle Problem Language Result Execution time Memory
1063723 2024-08-18T00:20:11 Z pawned Gondola (IOI14_gondola) C++17
55 / 100
 18 ms 5972 KB 
#pragma GCC optimize("O1,O2,O3,Ofast,unroll-loops")

#include <bits/stdc++.h>
using namespace std;

#define fi first
#define se second
#define pb push_back
typedef long long ll;
typedef pair<ll, ll> ii;
typedef vector<ll> vi;

#include "gondola.h"

int valid(int N, int inputSeq[]) {
	vi a;
	for (int i = 0; i < N; i++) {
		a.pb(inputSeq[i] - 1);
	}
	int fpos = -1;	// fixed position
	int fval = -1;	// fixed val at position
	for (int i = 0; i < N; i++) {
		if (a[i] < N) {
			fpos = i;
			fval = a[i];
		}
	}
	vi b;
	if (fval > fpos) {
		int s = fval - fpos;
		for (int i = N - s; i < N; i++) {
			b.pb(a[i]);
		}
		for (int i = 0; i < N - s; i++) {
			b.pb(a[i]);
		}
	}
	else {
		int s = fpos - fval;
		for (int i = s; i < N; i++) {
			b.pb(a[i]);
		}
		for (int i = 0; i < s; i++) {
			b.pb(a[i]);
		}
	}
	for (int i = 0; i < N; i++) {
		if (b[i] < N) {
			if (b[i] != i)
				return 0;
		}
	}
	// all values must be diff
	set<int> allv;
	for (int x : b)
		allv.insert(x);
	if (allv.size() != N)
		return 0;
	return 1;
}

int replacement(int N, int gondolaSeq[], int replacementSeq[]) {
	vi a;
	for (int i = 0; i < N; i++) {
		a.pb(gondolaSeq[i] - 1);
	}
	int fpos = -1;	// fixed position
	int fval = -1;	// fixed val at position
	for (int i = 0; i < N; i++) {
		if (a[i] < N) {
			fpos = i;
			fval = a[i];
		}
	}
	vi b;
	if (fpos == -1) {
		b = a;
	}
	else if (fval > fpos) {
		int s = fval - fpos;
		for (int i = N - s; i < N; i++) {
			b.pb(a[i]);
		}
		for (int i = 0; i < N - s; i++) {
			b.pb(a[i]);
		}
	}
	else {
		int s = fpos - fval;
		for (int i = s; i < N; i++) {
			b.pb(a[i]);
		}
		for (int i = 0; i < s; i++) {
			b.pb(a[i]);
		}
	}
/*	cout<<"b: ";
	for (int x : b)
		cout<<x<<" ";
	cout<<endl;*/
	// replace 0, 1, ..., N - 1 with b
	vector<ii> rep;
	for (int i = 0; i < N; i++) {
		if (b[i] != i)
			rep.pb({b[i], i});
	}
	sort(rep.begin(), rep.end());
/*	cout<<"rep: ";
	for (ii p : rep)
		cout<<"("<<p.fi<<", "<<p.se<<"); ";
	cout<<endl;*/
	if (rep.size() == 0) {	// just 0 to N - 1
		return 0;
	}
	int curr = N - 1;
	vi ans;
	for (int i = 0; i < rep.size(); i++) {
		ans.pb(rep[i].se);
		for (int j = curr + 1; j < rep[i].fi; j++) {
			ans.pb(j);
		}
		curr = rep[i].fi;
	}
	int K = ans.size();
	for (int i = 0; i < K; i++) {
		replacementSeq[i] = ans[i] + 1;
	}
	return K;
}

int countReplacement(int N, int inputSeq[]) {
	return -3;
}

// subtasks 1, 2, 3: check validity

Compilation message

gondola.cpp: In function 'int valid(int, int*)':
gondola.cpp:57:18: warning: comparison of integer expressions of different signedness: 'std::set<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   57 |  if (allv.size() != N)
      |      ~~~~~~~~~~~~^~~~
gondola.cpp: In function 'int replacement(int, int*, int*)':
gondola.cpp:117:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  117 |  for (int i = 0; i < rep.size(); i++) {
      |                  ~~^~~~~~~~~~~~

Subtask #1
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
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 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 1 ms 508 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 9 ms 2804 KB Output is correct
7 Correct 8 ms 2768 KB Output is correct
8 Correct 14 ms 5040 KB Output is correct
9 Correct 4 ms 1884 KB Output is correct
10 Correct 18 ms 5972 KB Output is correct

Subtask #3
10.0 / 10.0

# 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
6 Correct 8 ms 2892 KB Output is correct
7 Correct 7 ms 2984 KB Output is correct
8 Correct 15 ms 5192 KB Output is correct
9 Correct 5 ms 1880 KB Output is correct
10 Correct 17 ms 5788 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 3 ms 1492 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 7 ms 2768 KB Output is correct

Subtask #4
5.0 / 5.0

# 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 372 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 440 KB Output is correct
3 Correct 1 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 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct

Subtask #6
20.0 / 20.0

# 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 344 KB Output is correct
4 Correct 0 ms 440 KB Output is correct
5 Correct 0 ms 444 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 9 ms 3280 KB Output is correct
12 Correct 10 ms 3532 KB Output is correct
13 Correct 11 ms 2912 KB Output is correct
14 Correct 6 ms 3280 KB Output is correct
15 Correct 17 ms 3160 KB Output is correct

Subtask #7
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Integer -3 violates the range [0, 1000000008]
2 Halted 0 ms 0 KB -

Subtask #8
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Integer -3 violates the range [0, 1000000008]
2 Halted 0 ms 0 KB -

Subtask #9
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 344 KB Integer -3 violates the range [0, 1000000008]
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB Integer -3 violates the range [0, 1000000008]
2 Halted 0 ms 0 KB -