oj.uz

Submission #482667

# Submission time Handle Problem Language Result Execution time Memory
482667 2021-10-26T02:59:37 Z robell Ice Hockey World Championship (CEOI15_bobek) C++14
100 / 100
 195 ms 16844 KB 
#pragma GCC optimize("O2")
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
using namespace std;
using namespace __gnu_pbds;
typedef tree<int,null_type,less<int>,rb_tree_tag, tree_order_statistics_node_update> indexed_set;
typedef long long ll;
#define int long long
#define pb push_back
#define eb emplace_back
#define countbits __builtin_popcount
#define beg0 __builtin_clz
#define terminal0 __builtin_ctz
#define f first
#define s second
int mod=1e9+7;
void setIO(){
    ios::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
}
void setIO(string f){
	freopen((f+".in").c_str(),"r",stdin);
	freopen((f+".out").c_str(),"w",stdout);
	setIO();
}
ll N, M, c[40];
ll s1[(1<<20)], s2[(1<<20)];
vector<int> v1, v2;
vector<ll> vals;
vector<ll> counts={0};
void setup1(){
	for (int i=1;i<(1<<v1.size());i++){
		for (int j=0;j<v1.size();j++){
			if (i&(1<<j)){
				int n = i&(~(1<<j));
				s1[i]=s1[n]+v1[j];
				break;
			}
		}
	}
}
void setup2(){
	for (int i=1;i<(1<<v2.size());i++){
		for (int j=0;j<v2.size();j++){
			if (i&(1<<j)){
				int n = i&(~(1<<j));
				s2[i]=s2[n]+v2[j];
				break;
			}
		}
	}
}
int32_t main(){
	setIO(); cin >> N >> M; s1[0]=0;s2[0]=0;
	for (int i=0;i<N;i++){cin >> c[i];}
	int h1 = (1<<(N/2)), h2 = (1<<((N+1)/2));
	for (int i=0;i<N/2;i++) v1.pb(c[i]);
	for (int i=N/2;i<N;i++) v2.pb(c[i]);
	setup1();setup2();
	sort(s1,s1+h1);sort(s2,s2+h2);
	ll col = 0, ind = 0;
	for (int i=h1-1;i>=0;i--){
		while (s1[i]+s2[ind]<=M && ind<h2) ind++;
		col+=ind;
	}
	cout << col << "\n";
}

Compilation message

bobek.cpp: In function 'void setup1()':
bobek.cpp:33:17: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |   for (int j=0;j<v1.size();j++){
      |                ~^~~~~~~~~~
bobek.cpp: In function 'void setup2()':
bobek.cpp:44:17: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   44 |   for (int j=0;j<v2.size();j++){
      |                ~^~~~~~~~~~
bobek.cpp: In function 'void setIO(std::string)':
bobek.cpp:22:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   22 |  freopen((f+".in").c_str(),"r",stdin);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
bobek.cpp:23:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   23 |  freopen((f+".out").c_str(),"w",stdout);
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 332 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 1868 KB Output is correct
2 Correct 43 ms 4404 KB Output is correct
3 Correct 195 ms 16720 KB Output is correct
4 Correct 41 ms 4408 KB Output is correct
5 Correct 5 ms 1356 KB Output is correct
6 Correct 4 ms 844 KB Output is correct
7 Correct 9 ms 1352 KB Output is correct

Subtask #6
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 21 ms 2364 KB Output is correct
2 Correct 14 ms 1864 KB Output is correct
3 Correct 62 ms 8444 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 4 ms 844 KB Output is correct
6 Correct 10 ms 1356 KB Output is correct
7 Correct 13 ms 1356 KB Output is correct

Subtask #7
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 31 ms 3400 KB Output is correct
2 Correct 62 ms 6476 KB Output is correct
3 Correct 68 ms 6348 KB Output is correct
4 Correct 3 ms 332 KB Output is correct
5 Correct 26 ms 6476 KB Output is correct
6 Correct 137 ms 16704 KB Output is correct
7 Correct 61 ms 6476 KB Output is correct

Subtask #8
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 129 ms 12620 KB Output is correct
2 Correct 18 ms 1864 KB Output is correct
3 Correct 5 ms 716 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 3 ms 844 KB Output is correct
6 Correct 140 ms 12608 KB Output is correct
7 Correct 9 ms 1360 KB Output is correct

Subtask #9
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 1868 KB Output is correct
2 Correct 42 ms 4404 KB Output is correct
3 Correct 5 ms 844 KB Output is correct
4 Correct 5 ms 844 KB Output is correct
5 Correct 31 ms 6480 KB Output is correct
6 Correct 14 ms 1868 KB Output is correct
7 Correct 176 ms 16716 KB Output is correct

Subtask #10
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 172 ms 16716 KB Output is correct
2 Correct 16 ms 1872 KB Output is correct
3 Correct 5 ms 848 KB Output is correct
4 Correct 190 ms 16844 KB Output is correct
5 Correct 45 ms 8524 KB Output is correct
6 Correct 9 ms 1260 KB Output is correct
7 Correct 19 ms 2384 KB Output is correct