oj.uz

Submission #365218

# Submission time Handle Problem Language Result Execution time Memory
365218 2021-02-11T09:11:40 Z alireza_kaviani Land of the Rainbow Gold (APIO17_rainbow) C++11
12 / 100
 1792 ms 379856 KB 
#include "rainbow.h"
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

#define X		first
#define Y		second
#define all(x)	(x).begin() , (x).end()
#define SZ(x)	int((x).size())
#define sep		' '
#define endl	'\n'
#define lc		id << 1
#define rc		lc | 1

const int MAXN = 2e5 + 10;
const int LOG = 22;
const int MOD = 1e9 + 7;
const ll INF = 2e18;

int mnx = MOD , mny = MOD , mxx = 0 , mxy = 0;
vector<pii> points , ptr[4][MAXN << 2];
vector<int> vec[4][MAXN] , seg[4][MAXN << 2];

void merge(int ind , int id){
	int ptr1 = 0 , ptr2 = 0;
	while(ptr1 < SZ(seg[ind][lc]) && ptr2 < SZ(seg[ind][rc])){
		ptr[ind][id].push_back({ptr1 , ptr2});
		if(seg[ind][lc][ptr1] < seg[ind][rc][ptr2]){
			seg[ind][id].push_back(seg[ind][lc][ptr1++]);
		}
		else{
			seg[ind][id].push_back(seg[ind][rc][ptr2++]);
		}
	}
	while(ptr1 < SZ(seg[ind][lc])){
		ptr[ind][id].push_back({ptr1 , ptr2});
		seg[ind][id].push_back(seg[ind][lc][ptr1++]);
	}
	while(ptr2 < SZ(seg[ind][rc])){
		ptr[ind][id].push_back({ptr1 , ptr2});
		seg[ind][id].push_back(seg[ind][rc][ptr2++]);
	}
	ptr[ind][id].push_back({ptr1 , ptr2});
}

void build(int ind , int id = 1 , int l = 0 , int r = MAXN){
	if(r - l == 1){
		seg[ind][id] = vec[ind][l];
		sort(all(seg[ind][id]));
		seg[ind][id].resize(unique(all(seg[ind][id])) - seg[ind][id].begin());
		return;
	}
	int mid = l + r >> 1;
	build(ind , lc , l , mid);
	build(ind , rc , mid , r);
	merge(ind , id);
}

int get(int ind , int ql , int qr , int x , int bs = -1 , int id = 1 , int l = 0 , int r = MAXN){
	if(bs == -1)	bs = lower_bound(all(seg[ind][id]) , x) - seg[ind][id].begin();
	if(qr <= l || r <= ql)	return 0;
	if(ql <= l && r <= qr)	return bs;
	int mid = l + r >> 1;
	return get(ind , ql , qr , x , ptr[ind][id][bs].X , lc , l , mid) + get(ind , ql , qr , x , ptr[ind][id][bs].Y , rc , mid , r);
}

void init(int n, int m, int sr, int sc, int M, char *S) {
	points.push_back({sr , sc});
	for(int i = 0 ; i < M ; i++){
		if(S[i] == 'N')	sr--;
		if(S[i] == 'S')	sr++;
		if(S[i] == 'W')	sc--;
		if(S[i] == 'E')	sc++;
		points.push_back({sr , sc});
	}
	for(pii i : points){
		int x = i.X , y = i.Y;
//		cout << x << sep << y << endl;
		mnx = min(mnx , x); mxx = max(mxx , x);
		mny = min(mny , y); mxy = max(mxy , y);
		vec[0][x].push_back(y);
		vec[1][x].push_back(y); vec[1][x].push_back(y - 1);
		vec[2][x].push_back(y); vec[2][x - 1].push_back(y);
		vec[3][x].push_back(y); vec[3][x].push_back(y - 1);
		vec[3][x - 1].push_back(y); vec[3][x - 1].push_back(y - 1);
	}
	build(0); build(1); build(2); build(3);
}

int colour(int ar, int ac, int br, int bc) {
	int ans = 0 , R = br - ar + 1 , C = bc - ac + 1;
	br++; bc++;
	ans += R * C - (get(0 , ar , br , bc) - get(0 , ar , br , ac));
	ans -= R * (C - 1) - (get(1 , ar , br , bc - 1) - get(1 , ar , br , ac));
	ans -= (R - 1) * C - (get(2 , ar , br - 1 , bc) - get(2 , ar , br - 1 , ac));
	ans += (R - 1) * (C - 1) - (get(3 , ar , br - 1 , bc - 1) - get(3 , ar , br - 1 , ac));
    return ans + (mnx < ar && br < mxx && mny < ac && bc < mxy);
}

Compilation message

rainbow.cpp: In function 'void build(int, int, int, int)':
rainbow.cpp:56:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   56 |  int mid = l + r >> 1;
      |            ~~^~~
rainbow.cpp: In function 'int get(int, int, int, int, int, int, int, int)':
rainbow.cpp:66:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   66 |  int mid = l + r >> 1;
      |            ~~^~~

Subtask #1
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 188 ms 194796 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 193 ms 194412 KB Output is correct
2 Correct 185 ms 194412 KB Output is correct
3 Correct 1283 ms 281172 KB Output is correct
4 Correct 1792 ms 346532 KB Output is correct
5 Correct 1677 ms 345980 KB Output is correct
6 Correct 1228 ms 325688 KB Output is correct
7 Correct 1673 ms 315888 KB Output is correct
8 Correct 489 ms 206480 KB Output is correct
9 Correct 1719 ms 346528 KB Output is correct
10 Correct 1691 ms 345692 KB Output is correct
11 Correct 1336 ms 325724 KB Output is correct
12 Correct 769 ms 340316 KB Output is correct
13 Correct 804 ms 346588 KB Output is correct
14 Correct 843 ms 345692 KB Output is correct
15 Correct 762 ms 325468 KB Output is correct
16 Correct 1375 ms 318300 KB Output is correct

Subtask #3
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 217 ms 194412 KB Output is correct
2 Correct 421 ms 343764 KB Output is correct
3 Correct 733 ms 377692 KB Output is correct
4 Correct 659 ms 379856 KB Output is correct
5 Correct 518 ms 325596 KB Output is correct
6 Correct 306 ms 232036 KB Output is correct
7 Incorrect 318 ms 258144 KB Output isn't correct
8 Halted 0 ms 0 KB -

Subtask #4
0 / 27.0

# Verdict Execution time Memory Grader output
1 Incorrect 188 ms 194796 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 26.0

# Verdict Execution time Memory Grader output
1 Incorrect 188 ms 194796 KB Output isn't correct
2 Halted 0 ms 0 KB -