Submission #523191

#	Time	Username	Problem	Language	Result	Execution time	Memory
523191		mansur	Bali Sculptures (APIO15_sculpture)	C++17	50 / 100	70 ms	452 KiB

sculpture

#include<bits/stdc++.h>	
 
#pragma optimize ("g",on)
#pragma GCC optimize ("inline")
#pragma GCC optimize ("Ofast")
#pragma GCC optimize ("unroll-loops")
#pragma GCC optimize ("03")
#pragma GCC target ("sse,sse2,sse3,ssse3,sse4,popcnt,abm,avx2,mmx,fma,avx,tune=native")

//01001101 01100001 01101011 01101000 01100001  01100111 01100001 01111001 

using namespace std;        

#define all(a) a.begin(), a.end()                                                   
#define rall(a) a.rbegin(), a.rend()
#define ll long long
#define pb push_back
#define sz(a) a.size()
#define nl '\n'
#define popb pop_back()                                                                   
#define ld double
#define ull unsigned long long
#define ff first                                         
#define ss second  
#define fix fixed << setprecision
#define pii pair<int, int>                          
#define E exit (0)
#define int long long
 
const int inf = 1e15, N = 5e3 + 1, mod = 998244353;                    

double eps = 1e-6;

vector<pii> dir = {{1, 0}, {0, 1}, {-1, 0}, {0, -1}};

int n, a, b;

int y[N];

int f(int val) {
	int dp[n + 1];
	dp[0] = 0;
	for (int i = 1; i <= n; i++) {
		dp[i] = inf;
		int cur = 0;
		for (int j = i; j >= 1; j--) {
			cur += y[j - 1];
			if ((cur & val) == cur) {
				dp[i] = min(dp[j - 1] + 1, dp[i]);
			}
		}
	}
	return dp[n];
}

main() {                                                         
	//freopen("F.in", "r", stdin);                                                                                     
	//freopen("F.out", "w", stdout);                                                                                     
	ios_base::sync_with_stdio(NULL);                                                                                       
	cin.tie(NULL);
	cin >> n >> a >> b;
	for (int i = 0; i < n; i++) {
		cin >> y[i];     
	}
	int ans = 0, cur = (1ll << 40) - 1;
	for (int i = 39; i >= 0; i--) {
		if (f(cur) <= b) {
			cur -= (1ll << i);
		}else {
			cur += (1ll << (i + 1));
			cur -= (1ll << i);
		}
	}
	cout << cur + (f(cur) <= b ? 0 : 1);
}
                                                                           

Compilation message (stderr)

sculpture.cpp:3: warning: ignoring '#pragma optimize ' [-Wunknown-pragmas]
    3 | #pragma optimize ("g",on)
      | 
sculpture.cpp:56:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   56 | main() {
      | ^~~~
sculpture.cpp: In function 'int main()':
sculpture.cpp:65:6: warning: unused variable 'ans' [-Wunused-variable]
   65 |  int ans = 0, cur = (1ll << 40) - 1;
      |      ^~~

• Subtask 1: 0 / 9
• Subtask 2: 0 / 16
• Subtask 3: 21 / 21
• Subtask 4: 0 / 25
• Subtask 5: 29 / 29