Submission #783396

#	Time	Username	Problem	Language	Result	Execution time	Memory
783396		tolbi	Wombats (IOI13_wombats)	C++17	28 / 100	375 ms	21468 KiB

wombats

#pragma optimize("Bismillahirrahmanirrahim")
//█▀█─█──█──█▀█─█─█
//█▄█─█──█──█▄█─█■█
//█─█─█▄─█▄─█─█─█─█
//Allahuekber
//ahmet23 orz...
//FatihSultanMehmedHan
//YavuzSultanSelimHan
//AbdulhamidHan
//Sani buyuk Osman Pasa Plevneden cikmam diyor
#define author tolbi
#include<bits/stdc++.h>
using namespace std;
template<typename X, typename Y> ostream& operator<<(ostream& os, pair<X,Y> pr){return os<<pr.first<<" "<<pr.second;}
template<typename X> ostream& operator<<(ostream& os, vector<X> v){for (auto &it : v) os<<it; return os;}
template<typename X, size_t Y> ostream& operator<<(ostream& os, array<X,Y> v){for (auto &it : v) os<<it; return os;}
#define endl '\n'
#define deci(x) int x;cin>>x;
#define decstr(x) string x;cin>>x;
#define vint(x) vector<int> x
#define sortarr(x) sort(x.begin(), x.end())
#define sortrarr(x) sort(x.rbegin(), x.rend())
#define rev(x) reverse(x.begin(), x.end())
#define tol(bi) (1LL<<((long long)(bi)))
#define coutarr(x) for (auto &it : x) cout<<it<<" ";cout<<endl;
typedef long long ll;
const ll INF = 1e15;
const int MOD = 1e9+7;
mt19937 ayahya(chrono::high_resolution_clock().now().time_since_epoch().count());
#include "wombats.h"
const int MAXM = 100;
const int MAXN = 5000;
const int MAXSEG = 10000;
const int BL = 50;
int bls;
//MEMORY LIMIT 	BL*4*200*200 \
TIME LIMIT 		500*(5000/BL+log2(BL))*200*200
ll segtree[MAXSEG][MAXM][MAXM];
int n, m;
ll v[MAXN][MAXM],h[MAXN][MAXM];
int opt[MAXM][MAXM];
int segsize;
ll cost[MAXM][MAXM];
ll newc[MAXM][MAXM];
void merge(int node){
	if (node*2+1>=segsize){
		int blc = node-segsize/2;
		for (int i = 0; i < m; i++){
			for (int j = 0; j < m; j++){
				if (i==j) segtree[node][i][j]=0;
				else segtree[node][i][j]=INF;
			}
		}
		for (int pos = bls*blc; pos < bls*blc+bls; pos++){
			for (int i = 0; i < m; i++){
				ll crr = 0;
				for (int j = i; j < m; j++){
					cost[i][j]=crr+v[pos][j];
					if (j<m-1) crr+=h[pos][j];
				}
				crr = 0;
				for (int j = i; j >= 0; j--){
					cost[i][j]=crr+v[pos][j];
					if (j>0) crr+=h[pos][j-1];
				}
			}
			for (int i = m-1; i >= 0; i--){
				for (int j = 0; j < m; j++){
					int lrang = 0;
					if (j>0) lrang = max(lrang, opt[i][j-1]);
					int rrang = m-1;
					if (i<m-1) rrang = min(rrang,opt[i+1][j]);
					newc[i][j]=segtree[node][i][lrang]+cost[lrang][j];
					opt[i][j]=lrang;
					for (int k = lrang; k <= rrang; k++){
						if (segtree[node][i][k]+cost[k][j]<newc[i][j]){
							newc[i][j]=segtree[node][i][k]+cost[k][j];
							opt[i][j]=k;
						}
					}
				}
			}
			swap(segtree[node],newc);
		}
		return;
	}
	int up = node*2+1;
	int down = node*2+2;
	for (int i = m-1; i >= 0; i--){
		for (int j = 0; j < m; j++){
			int lrang=0;
			if (j>0) lrang=max(lrang,opt[i][j-1]);
			int rrang=m-1;
			if (i<m-1) rrang=min(rrang,opt[i+1][j]);
			segtree[node][i][j]=segtree[up][i][lrang]+segtree[down][lrang][j];
			opt[i][j]=lrang;
			for (int k = lrang; k <= rrang; k++){
				if (segtree[up][i][k]+segtree[down][k][j]<segtree[node][i][j]){
					segtree[node][i][j]=segtree[up][i][k]+segtree[down][k][j];
					opt[i][j]=k;
				}
			}
		}
	}
}
void init(int R, int C, int H[5000][200], int V[5000][200]) {
	n=R,m=C;
	for (int i = 0; i < MAXN; i++){
		for (int j = 0; j < MAXM; j++){
			if (i<R-1 && j<C) v[i][j]=V[i][j];
			else v[i][j]=0ll;
			if (i<R && j<C-1) h[i][j]=H[i][j];
			else h[i][j]=INF;
		}
	}
	bls=(n+BL-1)/BL;
	segsize=tol(ceil(log2(BL)+1))-1;
	for (int i = segsize-1; i >= 0; i--){
		merge(i);
	}
}
void changeH(int P, int Q, int W) {
	h[P][Q]=W;
	P=(P/bls)+segsize/2;
	merge(P);
	while (P>0){
		P=(P-1)/2;
		merge(P);
	}
}
void changeV(int P, int Q, int W) {
	v[P][Q]=W;
	P=(P/bls)+segsize/2;
	merge(P);
	while (P>0){
		P=(P-1)/2;
		merge(P);
	}
}
int escape(int V1, int V2) {
	return segtree[0][V1][V2];
}

Compilation message (stderr)

grader.c: In function 'int main()':
grader.c:15:6: warning: variable 'res' set but not used [-Wunused-but-set-variable]
   15 |  int res;
      |      ^~~
wombats.cpp:1: warning: ignoring '#pragma optimize ' [-Wunknown-pragmas]
    1 | #pragma optimize("Bismillahirrahmanirrahim")
      | 
wombats.cpp:36:1: warning: multi-line comment [-Wcomment]
   36 | //MEMORY LIMIT  BL*4*200*200 \
      | ^

• Subtask 1: 0 / 9
• Subtask 2: 12 / 12
• Subtask 3: 16 / 16
• Subtask 4: 0 / 18
• Subtask 5: 0 / 21
• Subtask 6: 0 / 24