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Submission #824650

# Submission time Handle Problem Language Result Execution time Memory
824650 2023-08-14T08:32:30 Z 박영우(#10362) Winter Driving (CCO19_day1problem3) C++17
0 / 25
 47 ms 5492 KB 
#include <bits/stdc++.h>
#include <cassert>
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#pragma GCC target("avx,avx2,fma")
using namespace std;
typedef long long ll;
typedef pair<ll, ll> pll;
typedef pair<int, int> pii;
#define MAX 2020
#define MAXS 20
#define INF 1000000010
#define bb ' '
#define ln '\n'
#define Ln '\n'
#define MOD 998244353
vector<int> adj[MAX];
ll A[MAX];
signed main() {
	ios::sync_with_stdio(false), cin.tie(0);
	int N;
	cin >> N;
	int i, p;
	for (i = 1; i <= N; i++) cin >> A[i];
	//for (i = 2; i <= N; i++) cin >> p, adj[p].push_back(i), adj[i].push_back(p);
	assert(N == 37);
	ll S = 0;
	for (i = 2; i <= 37; i++) S += A[i];
	vector<ll> v1, v2;
	v1.push_back(0);
	for (i = 2; i <= 19; i++) {
		int s = v1.size();
		for (int j = 0; j < s; j++) v1.push_back(v1[j] + A[i]);
	}
	v2.push_back(0);
	for (i = 20; i <= 37; i++) {
		int s = v2.size();
		for (int j = 0; j < s; j++) v2.push_back(v2[j] + A[i]);
	}
	sort(v1.begin(), v1.end());
	v1.erase(unique(v1.begin(), v1.end()), v1.end());
	sort(v2.begin(), v2.end());
	v2.erase(unique(v2.begin(), v2.end()), v2.end());
	ll mx = 0;
	for (auto v : v1) {
		int ind = lower_bound(v2.begin(), v2.end(), S / 2 - v) - v2.begin();
		for (i = ind - 10; i <= ind + 10; i++) if (0 <= i && i < v2.size()) mx = max(mx, (v + v2[ind]) * (S - v - v2[ind]));
	}
	for (i = 2; i <= 37; i++) mx += A[1] * A[i];
	for (i = 1; i <= 37; i++) mx += (A[i] - 1) * A[i];
	cout << mx;
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:48:58: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   48 |   for (i = ind - 10; i <= ind + 10; i++) if (0 <= i && i < v2.size()) mx = max(mx, (v + v2[ind]) * (S - v - v2[ind]));
      |                                                        ~~^~~~~~~~~~~
Main.cpp:24:9: warning: unused variable 'p' [-Wunused-variable]
   24 |  int i, p;
      |         ^

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 596 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #2
0 / 5.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 596 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #3
0 / 5.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 596 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #4
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 40 ms 5452 KB Output is correct
2 Correct 41 ms 5492 KB Output is correct
3 Correct 40 ms 5484 KB Output is correct
4 Correct 39 ms 5488 KB Output is correct
5 Correct 40 ms 5452 KB Output is correct
6 Correct 43 ms 5452 KB Output is correct
7 Correct 37 ms 5452 KB Output is correct
8 Correct 45 ms 5452 KB Output is correct
9 Correct 40 ms 5452 KB Output is correct
10 Correct 39 ms 5452 KB Output is correct
11 Correct 41 ms 5484 KB Output is correct
12 Correct 40 ms 5484 KB Output is correct
13 Correct 44 ms 5460 KB Output is correct
14 Correct 47 ms 5452 KB Output is correct
15 Incorrect 45 ms 5452 KB Output isn't correct
16 Halted 0 ms 0 KB -

Subtask #5
0 / 5.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 596 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -