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Submission #417891

# Submission time Handle Problem Language Result Execution time Memory
417891 2021-06-04T13:11:32 Z Kevin_Zhang_TW The Collection Game (BOI21_swaps) C++17
25 / 100
 91 ms 560 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define pb emplace_back
#define AI(i) begin(i), end(i)
template<class T> bool chmin(T &a, T b) { return b < a && (a = b, true); }
template<class T> bool chmax(T &a, T b) { return a < b && (a = b, true); }
#ifdef KEV
#define DE(args...) kout("[ " + string(#args) + " ] = ", args)
void kout() { cerr << endl; }
template<class T, class ...U> void kout(T a, U ...b) { cerr << a << ' ', kout(b...); }
template<class T> void debug(T l, T r) { while (l != r) cerr << *l << " \n"[next(l)==r], ++l; }
#else
#define DE(...) 0
#define debug(...) 0
#endif
#include "swaps.h"

const int MAX_N = 300010;

void solve(int N, int V) {

	vector<int> id(N); iota(AI(id), 1);


	{
		vector<pair<int,int>> comp;


		vector<int> ret = visit();
		for (int j = 0;j < ret.size();++j) {
			if (ret[j] == 0) {
				auto [x, y] = comp[j];
				swap(id[x], id[y]);
			}
		}
	}

	chmin(V, 2 * N);

	for (int i = 0;i < V;++i) {
		vector<pair<int,int>> comp;



		if (i % 3 == 0) {
			int mid = (N+1) / 2;
			for (int i = mid;i < N;++i)
				comp.pb(i-mid, i);
		}
		if (i % 3 == 1) {
			for (int j = 0;j+1 < N;j += 2) { 
				schedule(id[j], id[j+1]);
				comp.pb(j, j+1);
			}
		}
		if (i % 3 == 2) {
			for (int j = 1;j+1 < N;j += 2) { 
				schedule(id[j], id[j+1]);
				comp.pb(j, j+1);
			}
		}

		vector<int> ret = visit();
		for (int j = 0;j < ret.size();++j) {
			if (ret[j] == 0) {
				auto [x, y] = comp[j];
				swap(id[x], id[y]);
			}
		}
	}

	answer(id);
}

Compilation message

swaps.cpp: In function 'void solve(int, int)':
swaps.cpp:31:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   31 |   for (int j = 0;j < ret.size();++j) {
      |                  ~~^~~~~~~~~~~~
swaps.cpp:65:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   65 |   for (int j = 0;j < ret.size();++j) {
      |                  ~~^~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Correct
2 Correct 5 ms 200 KB Correct
3 Correct 20 ms 200 KB Correct
4 Correct 71 ms 300 KB Correct
5 Correct 91 ms 300 KB Correct
6 Correct 76 ms 300 KB Correct
7 Correct 72 ms 304 KB Correct
8 Correct 84 ms 372 KB Correct

Subtask #2
0.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Correct
2 Correct 5 ms 200 KB Correct
3 Correct 21 ms 200 KB Correct
4 Correct 71 ms 400 KB Correct
5 Correct 71 ms 300 KB Correct
6 Correct 78 ms 360 KB Correct
7 Correct 77 ms 300 KB Correct
8 Correct 71 ms 384 KB Correct
9 Runtime error 80 ms 408 KB Execution killed with signal 13
10 Halted 0 ms 0 KB -

Subtask #3
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Correct
2 Correct 5 ms 200 KB Correct

Subtask #4
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Correct
2 Correct 5 ms 200 KB Correct
3 Correct 1 ms 200 KB Correct
4 Correct 5 ms 292 KB Correct

Subtask #5
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Correct
2 Correct 7 ms 292 KB Correct
3 Correct 27 ms 200 KB Correct
4 Correct 76 ms 296 KB Correct

Subtask #6
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Correct
2 Correct 7 ms 292 KB Correct
3 Correct 27 ms 200 KB Correct
4 Correct 76 ms 296 KB Correct
5 Correct 1 ms 200 KB Correct
6 Correct 7 ms 200 KB Correct
7 Correct 20 ms 200 KB Correct
8 Correct 85 ms 292 KB Correct
9 Correct 75 ms 392 KB Correct
10 Correct 78 ms 300 KB Correct
11 Correct 78 ms 332 KB Correct
12 Correct 71 ms 560 KB Correct
13 Correct 1 ms 200 KB Correct
14 Correct 5 ms 200 KB Correct
15 Correct 20 ms 200 KB Correct
16 Correct 73 ms 320 KB Correct

Subtask #7
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 200 KB Correct
2 Correct 5 ms 288 KB Correct
3 Correct 20 ms 200 KB Correct
4 Correct 70 ms 300 KB Correct
5 Runtime error 49 ms 448 KB Execution killed with signal 13

Subtask #8
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 200 KB Correct
2 Correct 5 ms 288 KB Correct
3 Correct 20 ms 200 KB Correct
4 Correct 70 ms 300 KB Correct
5 Runtime error 49 ms 448 KB Execution killed with signal 13

Subtask #9
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Correct
2 Correct 5 ms 200 KB Correct
3 Correct 20 ms 200 KB Correct
4 Correct 72 ms 308 KB Correct
5 Runtime error 39 ms 320 KB Execution killed with signal 13
6 Halted 0 ms 0 KB -

Subtask #10
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Correct
2 Correct 5 ms 200 KB Correct
3 Correct 20 ms 200 KB Correct
4 Correct 72 ms 308 KB Correct
5 Runtime error 39 ms 320 KB Execution killed with signal 13
6 Halted 0 ms 0 KB -

Subtask #11
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Correct
2 Correct 5 ms 288 KB Correct
3 Correct 27 ms 200 KB Correct
4 Correct 68 ms 300 KB Correct
5 Runtime error 40 ms 376 KB Execution killed with signal 13
6 Halted 0 ms 0 KB -

Subtask #12
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Correct
2 Correct 5 ms 288 KB Correct
3 Correct 27 ms 200 KB Correct
4 Correct 68 ms 300 KB Correct
5 Runtime error 40 ms 376 KB Execution killed with signal 13
6 Halted 0 ms 0 KB -