oj.uz

답안 #738690

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
738690 2023-05-09T11:47:02 Z myrcella 무지개나라 (APIO17_rainbow) C++17
100 / 100
 1114 ms 168040 KB 
//by szh
#include<bits/stdc++.h>
using namespace std;
 
#define fi first
#define se second
#define pii pair<int,int>
#define pll pair<long long,long long>
#define pb push_back
#define debug(x) cerr<<#x<<"="<<x<<endl
#define pq priority_queue
#define inf 0x3f
#define rep(i,a,b) for (int i=a;i<(b);i++)
#define MP make_pair
#define SZ(x) (int(x.size()))
#define ll long long
#define mod 1000000007
#define ALL(x) x.begin(),x.end()
void inc(int &a,int b) {a=(a+b)%mod;}
void dec(int &a,int b) {a=(a-b+mod)%mod;}
int lowbit(int x) {return x&(-x);}
ll p0w(ll base,ll p) {ll ret=1;while(p>0){if (p%2ll==1ll) ret=ret*base%mod;base=base*base%mod;p/=2ll;}return ret;}
 
#include "rainbow.h"
 
const int maxn = 1e6+10;
 
int r,c;
vector <pii> river;

struct psegtree{
	int rt[maxn<<4],tree[maxn<<4],ls[maxn<<4],rs[maxn<<4];
	vector <pii> pos;
	int tot;
	
	int build(int cl,int cr) {
		int cur = tot++;
		if (cl<cr) {
			int mid=cl+cr>>1;
			ls[cur] = build(cl,mid);
			rs[cur] = build(mid+1,cr);
		}
		tree[cur] = 0;
		return cur;
	}
	
	int update(int k,int l,int r,int root) {
		assert(root!=-1);
		int cur = tot++;
		tree[cur] = tree[root] + 1;
		if (l==r) return cur;
		int mid=l+r>>1;
		if (k<=mid) ls[cur] = update(k,l,mid,ls[root]), rs[cur] = rs[root];
		else rs[cur] = update(k,mid+1,r,rs[root]), ls[cur] = ls[root];
		return cur;
	}
	void init() {
		sort(ALL(pos));
		pos.erase(unique(ALL(pos)),pos.end());
		tot = 0;
		rt[0] = build(0,c);
		rep(i,0,SZ(pos)) {
			rt[i+1] = update(pos[i].se,0,c,rt[i]);
			assert(tree[rt[i+1]]==i+1);
		}
	}
	int query(int node,int cl,int cr,int l,int r) {
		assert(node!=-1);
		if (node==-1) return 0;
		if (l<=cl and cr<=r) return tree[node];
		int mid = cl+cr>>1;
		int ret = 0;
		if (l<=mid) ret += query(ls[node],cl,mid,l,r);
		if (r>mid) ret += query(rs[node],mid+1,cr,l,r);
		return ret;
	}
	int query(int ar,int ac,int br,int bc) {
		int ed = upper_bound(ALL(pos),MP(br,mod))-pos.begin();
		int bg = lower_bound(ALL(pos),MP(ar,-1))-pos.begin();
//		debug(SZ(pos));
//		debug(ed),debug(bg);
//		debug(query(rt[ed],0,c,ac,bc));
		return query(rt[ed],0,c,ac,bc) - query(rt[bg],0,c,ac,bc);
	}
}node,horizontal,vertical,grid;
int minr = mod,maxr=-1,minc = mod,maxc = -1;

void init(int R, int C, int sr, int sc, int M, char *S) {
	r = R, c = C;
	river.pb({sr,sc});
	minr = min(minr,sr),maxr = max(maxr,sr);
	minc = min(minc,sc),maxc = max(maxc,sc);
	rep(i,0,M) {
		if (S[i]=='S') sr++;
		else if (S[i]=='E') sc++;
		else if (S[i]=='W') sc--;
		else sr--;
		river.pb({sr,sc});
		minr = min(minr,sr),maxr = max(maxr,sr);
		minc = min(minc,sc),maxc = max(maxc,sc);
	}
	node.rt[0] = 0;
	horizontal.rt[0] = 0;
	vertical.rt[0] = 0;
	grid.rt[0] = 0;
	rep(i,0,SZ(river)) {
		node.pos.pb(river[i]);
		horizontal.pos.pb({river[i].fi,river[i].se-1});
		horizontal.pos.pb(river[i]);
		vertical.pos.pb({river[i].fi-1,river[i].se});
		vertical.pos.pb(river[i]);
		grid.pos.pb({river[i].fi-1,river[i].se});
		grid.pos.pb({river[i].fi,river[i].se-1});
		grid.pos.pb({river[i].fi-1,river[i].se-1});
		grid.pos.pb({river[i].fi,river[i].se});
	}
	node.init();
	horizontal.init();
	vertical.init();
	grid.init();
}
 
int colour(int ar, int ac, int br, int bc) {
	ll V = 1ll*(br-ar+1)*(bc-ac+1) - node.query(ar,ac,br,bc);
	ll E = 1ll*(br-ar+1)*(bc-ac) - horizontal.query(ar,ac,br,bc-1) 
	     + 1ll*(br-ar)*(bc-ac+1) - vertical.query(ar,ac,br-1,bc);
	ll F = 1ll*(br-ar)*(bc-ac) - grid.query(ar,ac,br-1,bc-1);
	
//	debug(V),debug(E),debug(F);
	
	if (ar<minr and ac<minc and br>maxr and bc>maxc) F++;
	return V-E+F;
}

Compilation message

rainbow.cpp: In member function 'int psegtree::build(int, int)':
rainbow.cpp:39:14: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   39 |    int mid=cl+cr>>1;
      |            ~~^~~
rainbow.cpp: In member function 'int psegtree::update(int, int, int, int)':
rainbow.cpp:52:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   52 |   int mid=l+r>>1;
      |           ~^~
rainbow.cpp: In member function 'int psegtree::query(int, int, int, int, int)':
rainbow.cpp:71:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   71 |   int mid = cl+cr>>1;
      |             ~~^~~

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 468 KB Output is correct
2 Correct 4 ms 1016 KB Output is correct
3 Correct 2 ms 596 KB Output is correct
4 Correct 2 ms 596 KB Output is correct
5 Correct 5 ms 1364 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 3 ms 724 KB Output is correct
12 Correct 4 ms 984 KB Output is correct
13 Correct 4 ms 1236 KB Output is correct
14 Correct 6 ms 1748 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct

Subtask #2
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 832 ms 107996 KB Output is correct
4 Correct 960 ms 166792 KB Output is correct
5 Correct 1096 ms 165748 KB Output is correct
6 Correct 884 ms 135092 KB Output is correct
7 Correct 956 ms 133368 KB Output is correct
8 Correct 587 ms 32800 KB Output is correct
9 Correct 953 ms 166728 KB Output is correct
10 Correct 952 ms 165680 KB Output is correct
11 Correct 916 ms 135244 KB Output is correct
12 Correct 418 ms 156720 KB Output is correct
13 Correct 434 ms 166696 KB Output is correct
14 Correct 490 ms 165628 KB Output is correct
15 Correct 439 ms 135476 KB Output is correct
16 Correct 909 ms 125188 KB Output is correct

Subtask #3
24.0 / 24.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 164 ms 163380 KB Output is correct
3 Correct 137 ms 160868 KB Output is correct
4 Correct 143 ms 163428 KB Output is correct
5 Correct 119 ms 127632 KB Output is correct
6 Correct 104 ms 54496 KB Output is correct
7 Correct 138 ms 79424 KB Output is correct
8 Correct 163 ms 119380 KB Output is correct
9 Correct 161 ms 104020 KB Output is correct
10 Correct 54 ms 22260 KB Output is correct
11 Correct 129 ms 69360 KB Output is correct
12 Correct 187 ms 163376 KB Output is correct
13 Correct 136 ms 160952 KB Output is correct
14 Correct 159 ms 163444 KB Output is correct
15 Correct 132 ms 127668 KB Output is correct
16 Correct 105 ms 49436 KB Output is correct
17 Correct 131 ms 79444 KB Output is correct
18 Correct 180 ms 163380 KB Output is correct
19 Correct 150 ms 164572 KB Output is correct
20 Correct 148 ms 164396 KB Output is correct
21 Correct 154 ms 119372 KB Output is correct
22 Correct 156 ms 104008 KB Output is correct
23 Correct 59 ms 22268 KB Output is correct
24 Correct 132 ms 69300 KB Output is correct
25 Correct 173 ms 163352 KB Output is correct
26 Correct 134 ms 160956 KB Output is correct
27 Correct 141 ms 163396 KB Output is correct
28 Correct 126 ms 127764 KB Output is correct
29 Correct 103 ms 49460 KB Output is correct
30 Correct 131 ms 79444 KB Output is correct
31 Correct 173 ms 163432 KB Output is correct
32 Correct 155 ms 164540 KB Output is correct
33 Correct 166 ms 164428 KB Output is correct

Subtask #4
27.0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 468 KB Output is correct
2 Correct 4 ms 1016 KB Output is correct
3 Correct 2 ms 596 KB Output is correct
4 Correct 2 ms 596 KB Output is correct
5 Correct 5 ms 1364 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 3 ms 724 KB Output is correct
12 Correct 4 ms 984 KB Output is correct
13 Correct 4 ms 1236 KB Output is correct
14 Correct 6 ms 1748 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 781 ms 54344 KB Output is correct
19 Correct 229 ms 6200 KB Output is correct
20 Correct 189 ms 4064 KB Output is correct
21 Correct 211 ms 4500 KB Output is correct
22 Correct 215 ms 4924 KB Output is correct
23 Correct 252 ms 6092 KB Output is correct
24 Correct 180 ms 4680 KB Output is correct
25 Correct 193 ms 5036 KB Output is correct
26 Correct 209 ms 5364 KB Output is correct
27 Correct 439 ms 46656 KB Output is correct
28 Correct 302 ms 29700 KB Output is correct
29 Correct 372 ms 43748 KB Output is correct
30 Correct 554 ms 93948 KB Output is correct
31 Correct 3 ms 468 KB Output is correct
32 Correct 727 ms 46940 KB Output is correct

Subtask #5
26.0 / 26.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 468 KB Output is correct
2 Correct 4 ms 1016 KB Output is correct
3 Correct 2 ms 596 KB Output is correct
4 Correct 2 ms 596 KB Output is correct
5 Correct 5 ms 1364 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 3 ms 724 KB Output is correct
12 Correct 4 ms 984 KB Output is correct
13 Correct 4 ms 1236 KB Output is correct
14 Correct 6 ms 1748 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 781 ms 54344 KB Output is correct
19 Correct 229 ms 6200 KB Output is correct
20 Correct 189 ms 4064 KB Output is correct
21 Correct 211 ms 4500 KB Output is correct
22 Correct 215 ms 4924 KB Output is correct
23 Correct 252 ms 6092 KB Output is correct
24 Correct 180 ms 4680 KB Output is correct
25 Correct 193 ms 5036 KB Output is correct
26 Correct 209 ms 5364 KB Output is correct
27 Correct 439 ms 46656 KB Output is correct
28 Correct 302 ms 29700 KB Output is correct
29 Correct 372 ms 43748 KB Output is correct
30 Correct 554 ms 93948 KB Output is correct
31 Correct 3 ms 468 KB Output is correct
32 Correct 727 ms 46940 KB Output is correct
33 Correct 164 ms 163380 KB Output is correct
34 Correct 137 ms 160868 KB Output is correct
35 Correct 143 ms 163428 KB Output is correct
36 Correct 119 ms 127632 KB Output is correct
37 Correct 104 ms 54496 KB Output is correct
38 Correct 138 ms 79424 KB Output is correct
39 Correct 163 ms 119380 KB Output is correct
40 Correct 161 ms 104020 KB Output is correct
41 Correct 54 ms 22260 KB Output is correct
42 Correct 129 ms 69360 KB Output is correct
43 Correct 187 ms 163376 KB Output is correct
44 Correct 136 ms 160952 KB Output is correct
45 Correct 159 ms 163444 KB Output is correct
46 Correct 132 ms 127668 KB Output is correct
47 Correct 105 ms 49436 KB Output is correct
48 Correct 131 ms 79444 KB Output is correct
49 Correct 180 ms 163380 KB Output is correct
50 Correct 150 ms 164572 KB Output is correct
51 Correct 148 ms 164396 KB Output is correct
52 Correct 154 ms 119372 KB Output is correct
53 Correct 156 ms 104008 KB Output is correct
54 Correct 59 ms 22268 KB Output is correct
55 Correct 132 ms 69300 KB Output is correct
56 Correct 173 ms 163352 KB Output is correct
57 Correct 134 ms 160956 KB Output is correct
58 Correct 141 ms 163396 KB Output is correct
59 Correct 126 ms 127764 KB Output is correct
60 Correct 103 ms 49460 KB Output is correct
61 Correct 131 ms 79444 KB Output is correct
62 Correct 173 ms 163432 KB Output is correct
63 Correct 155 ms 164540 KB Output is correct
64 Correct 166 ms 164428 KB Output is correct
65 Correct 832 ms 107996 KB Output is correct
66 Correct 960 ms 166792 KB Output is correct
67 Correct 1096 ms 165748 KB Output is correct
68 Correct 884 ms 135092 KB Output is correct
69 Correct 956 ms 133368 KB Output is correct
70 Correct 587 ms 32800 KB Output is correct
71 Correct 953 ms 166728 KB Output is correct
72 Correct 952 ms 165680 KB Output is correct
73 Correct 916 ms 135244 KB Output is correct
74 Correct 418 ms 156720 KB Output is correct
75 Correct 434 ms 166696 KB Output is correct
76 Correct 490 ms 165628 KB Output is correct
77 Correct 439 ms 135476 KB Output is correct
78 Correct 909 ms 125188 KB Output is correct
79 Correct 1114 ms 122780 KB Output is correct
80 Correct 1080 ms 107412 KB Output is correct
81 Correct 437 ms 25816 KB Output is correct
82 Correct 603 ms 72712 KB Output is correct
83 Correct 774 ms 166948 KB Output is correct
84 Correct 875 ms 164556 KB Output is correct
85 Correct 769 ms 167156 KB Output is correct
86 Correct 757 ms 131172 KB Output is correct
87 Correct 594 ms 52864 KB Output is correct
88 Correct 683 ms 83120 KB Output is correct
89 Correct 702 ms 166924 KB Output is correct
90 Correct 949 ms 168040 KB Output is correct
91 Correct 744 ms 167828 KB Output is correct