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Submission #76587

# Submission time Handle Problem Language Result Execution time Memory
76587 2018-09-15T05:53:14 Z tmwilliamlin168 Swap (BOI16_swap) C++14
68 / 100
 773 ms 263168 KB 
#include <bits/stdc++.h>
using namespace std;

const int mxN=2e5;
int n, a[mxN+1], cdi;
unordered_map<int, int> di[mxN+1];
vector<int> dp[mxN*18*2];

void mrg(vector<int> &v, vector<int> &a, vector<int> &b) {
	for(int l=1, i=0, j=0; i<a.size()||j<b.size(); i+=l, j+=l, l*=2) {
		for(int k=0; k<l&&i+k<a.size(); ++k)
			v.push_back(a[i+k]);
		for(int k=0; k<l&&j+k<b.size(); ++k)
			v.push_back(b[j+k]);
	}
}

int c(int i, int b) {
	auto it=di[i].find(b);
	if(it!=di[i].end())
		return it->second;
	int r=cdi++;
	di[i][b]=r;
	if(2*i+1<=n) {
		if(a[2*i+1]<b&&a[2*i+1]<a[2*i]) {
			vector<int> v1={a[2*i+1]}, v2={a[2*i+1]};
			mrg(v1, dp[c(2*i, a[2*i])], dp[c(2*i+1, b)]);
			mrg(v2, dp[c(2*i, b)], dp[c(2*i+1, a[2*i])]);
			dp[r]=min(v1, v2);
			vector<int>().swap(v1);
			vector<int>().swap(v2);
		} else {
			dp[r]={min(b, a[2*i])};
			mrg(dp[r], dp[c(2*i, max(b, a[2*i]))], dp[c(2*i+1, a[2*i+1])]);
		}
	} else if(2*i<=n)
		dp[r]={min(b, a[2*i]), max(b, a[2*i])};
	else
		dp[r]={b};
	return r;
}

int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	
	cin >> n;
	for(int i=1; i<=n; ++i)
		cin >> a[i];
	for(int b : dp[c(1, a[1])])
		cout << b << " ";
}

Compilation message

swap.cpp: In function 'void mrg(std::vector<int>&, std::vector<int>&, std::vector<int>&)':
swap.cpp:10:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int l=1, i=0, j=0; i<a.size()||j<b.size(); i+=l, j+=l, l*=2) {
                         ~^~~~~~~~~
swap.cpp:10:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int l=1, i=0, j=0; i<a.size()||j<b.size(); i+=l, j+=l, l*=2) {
                                     ~^~~~~~~~~
swap.cpp:11:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int k=0; k<l&&i+k<a.size(); ++k)
                     ~~~^~~~~~~~~
swap.cpp:13:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int k=0; k<l&&j+k<b.size(); ++k)
                     ~~~^~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 160 ms 180348 KB Output is correct
2 Correct 163 ms 180608 KB Output is correct
3 Correct 163 ms 180608 KB Output is correct
4 Correct 159 ms 180740 KB Output is correct
5 Correct 161 ms 180740 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 160 ms 180348 KB Output is correct
2 Correct 163 ms 180608 KB Output is correct
3 Correct 163 ms 180608 KB Output is correct
4 Correct 159 ms 180740 KB Output is correct
5 Correct 161 ms 180740 KB Output is correct
6 Correct 155 ms 180740 KB Output is correct
7 Correct 160 ms 180760 KB Output is correct
8 Correct 160 ms 180888 KB Output is correct
9 Correct 169 ms 180888 KB Output is correct
10 Correct 164 ms 180888 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 160 ms 180348 KB Output is correct
2 Correct 163 ms 180608 KB Output is correct
3 Correct 163 ms 180608 KB Output is correct
4 Correct 159 ms 180740 KB Output is correct
5 Correct 161 ms 180740 KB Output is correct
6 Correct 155 ms 180740 KB Output is correct
7 Correct 160 ms 180760 KB Output is correct
8 Correct 160 ms 180888 KB Output is correct
9 Correct 169 ms 180888 KB Output is correct
10 Correct 164 ms 180888 KB Output is correct
11 Correct 172 ms 180956 KB Output is correct
12 Correct 167 ms 181088 KB Output is correct
13 Correct 162 ms 181088 KB Output is correct
14 Correct 163 ms 181480 KB Output is correct
15 Correct 165 ms 181512 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 160 ms 180348 KB Output is correct
2 Correct 163 ms 180608 KB Output is correct
3 Correct 163 ms 180608 KB Output is correct
4 Correct 159 ms 180740 KB Output is correct
5 Correct 161 ms 180740 KB Output is correct
6 Correct 155 ms 180740 KB Output is correct
7 Correct 160 ms 180760 KB Output is correct
8 Correct 160 ms 180888 KB Output is correct
9 Correct 169 ms 180888 KB Output is correct
10 Correct 164 ms 180888 KB Output is correct
11 Correct 172 ms 180956 KB Output is correct
12 Correct 167 ms 181088 KB Output is correct
13 Correct 162 ms 181088 KB Output is correct
14 Correct 163 ms 181480 KB Output is correct
15 Correct 165 ms 181512 KB Output is correct
16 Correct 244 ms 195932 KB Output is correct
17 Correct 245 ms 196108 KB Output is correct
18 Correct 249 ms 196824 KB Output is correct
19 Correct 750 ms 252152 KB Output is correct
20 Correct 773 ms 252152 KB Output is correct

Subtask #5
0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 160 ms 180348 KB Output is correct
2 Correct 163 ms 180608 KB Output is correct
3 Correct 163 ms 180608 KB Output is correct
4 Correct 159 ms 180740 KB Output is correct
5 Correct 161 ms 180740 KB Output is correct
6 Correct 155 ms 180740 KB Output is correct
7 Correct 160 ms 180760 KB Output is correct
8 Correct 160 ms 180888 KB Output is correct
9 Correct 169 ms 180888 KB Output is correct
10 Correct 164 ms 180888 KB Output is correct
11 Correct 172 ms 180956 KB Output is correct
12 Correct 167 ms 181088 KB Output is correct
13 Correct 162 ms 181088 KB Output is correct
14 Correct 163 ms 181480 KB Output is correct
15 Correct 165 ms 181512 KB Output is correct
16 Correct 244 ms 195932 KB Output is correct
17 Correct 245 ms 196108 KB Output is correct
18 Correct 249 ms 196824 KB Output is correct
19 Correct 750 ms 252152 KB Output is correct
20 Correct 773 ms 252152 KB Output is correct
21 Correct 561 ms 252152 KB Output is correct
22 Correct 521 ms 252152 KB Output is correct
23 Correct 556 ms 252152 KB Output is correct
24 Runtime error 727 ms 263168 KB Execution killed with signal 9 (could be triggered by violating memory limits)
25 Halted 0 ms 0 KB -