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Submission #74554

# Submission time Handle Problem Language Result Execution time Memory
74554 2018-09-03T12:56:45 Z Adhyyan1252 Ice Hockey World Championship (CEOI15_bobek) C++11
100 / 100
 357 ms 33816 KB 
#include<bits/stdc++.h>

using namespace std;
typedef long long ll;
ll n, m;
vector<ll> a, b, c;
void brute(int i, int e, ll cost){
	if(i == e+1){
		b.push_back(cost);
		return;
	}
	brute(i+1, e, cost + a[i]);
	brute(i+1, e, cost);
}

int main(){
	cin>>n>>m;
	a.resize(n);
	for(int i = 0; i < n; i++){
		cin>>a[i];
	}
	b.reserve(1000000); c.reserve(1000000);
	brute(0, n/2, 0);
	c = b;
	b.clear();
	brute(n/2+1, n-1, 0);
	ll ans =0 ;
	sort(b.begin(), b.end());
	sort(c.begin(), c.end());
	int pntr = c.size() - 1;
	for(int i = 0; i < b.size(); i++){
		while(pntr >= 0 && c[pntr] + b[i] > m){
			pntr--;
		}
		ans += pntr + 1;
	}
	cout<<ans<<endl;
}

Compilation message

bobek.cpp: In function 'int main()':
bobek.cpp:31:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0; i < b.size(); i++){
                 ~~^~~~~~~~~~

Subtask #1
10.0 / 10.0

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

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 588 KB Output is correct
3 Correct 2 ms 672 KB Output is correct
4 Correct 2 ms 672 KB Output is correct
5 Correct 2 ms 708 KB Output is correct
6 Correct 2 ms 708 KB Output is correct
7 Correct 2 ms 708 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 708 KB Output is correct
2 Correct 2 ms 708 KB Output is correct
3 Correct 2 ms 708 KB Output is correct
4 Correct 2 ms 708 KB Output is correct
5 Correct 2 ms 708 KB Output is correct
6 Correct 2 ms 708 KB Output is correct
7 Correct 2 ms 708 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 708 KB Output is correct
2 Correct 2 ms 708 KB Output is correct
3 Correct 3 ms 708 KB Output is correct
4 Correct 2 ms 708 KB Output is correct
5 Correct 2 ms 712 KB Output is correct
6 Correct 2 ms 716 KB Output is correct
7 Correct 2 ms 720 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 2772 KB Output is correct
2 Correct 76 ms 8900 KB Output is correct
3 Correct 332 ms 33756 KB Output is correct
4 Correct 76 ms 33756 KB Output is correct
5 Correct 15 ms 33756 KB Output is correct
6 Correct 9 ms 33756 KB Output is correct
7 Correct 18 ms 33756 KB Output is correct

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 33756 KB Output is correct
2 Correct 22 ms 33756 KB Output is correct
3 Correct 129 ms 33756 KB Output is correct
4 Correct 2 ms 33756 KB Output is correct
5 Correct 7 ms 33756 KB Output is correct
6 Correct 18 ms 33756 KB Output is correct
7 Correct 23 ms 33756 KB Output is correct

Subtask #7
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 33756 KB Output is correct
2 Correct 87 ms 33756 KB Output is correct
3 Correct 88 ms 33756 KB Output is correct
4 Correct 2 ms 33756 KB Output is correct
5 Correct 44 ms 33756 KB Output is correct
6 Correct 280 ms 33784 KB Output is correct
7 Correct 85 ms 33784 KB Output is correct

Subtask #8
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 201 ms 33784 KB Output is correct
2 Correct 22 ms 33784 KB Output is correct
3 Correct 10 ms 33784 KB Output is correct
4 Correct 2 ms 33784 KB Output is correct
5 Correct 8 ms 33784 KB Output is correct
6 Correct 191 ms 33784 KB Output is correct
7 Correct 19 ms 33784 KB Output is correct

Subtask #9
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 33784 KB Output is correct
2 Correct 79 ms 33784 KB Output is correct
3 Correct 10 ms 33784 KB Output is correct
4 Correct 10 ms 33784 KB Output is correct
5 Correct 50 ms 33784 KB Output is correct
6 Correct 21 ms 33784 KB Output is correct
7 Correct 338 ms 33784 KB Output is correct

Subtask #10
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 343 ms 33816 KB Output is correct
2 Correct 22 ms 33816 KB Output is correct
3 Correct 10 ms 33816 KB Output is correct
4 Correct 357 ms 33816 KB Output is correct
5 Correct 85 ms 33816 KB Output is correct
6 Correct 20 ms 33816 KB Output is correct
7 Correct 37 ms 33816 KB Output is correct