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Submission #125350

# Submission time Handle Problem Language Result Execution time Memory
125350 2019-07-05T06:30:42 Z abacaba Krave (COI14_krave) C++14
100 / 100
 854 ms 80464 KB 
#include <bits/stdc++.h>
using namespace std;
 
#define max3(a, b, c) max(a, max(b, c))
#define min3(a, b, c) min(a, min(b, c))
#define mp make_pair
#define f first
#define se second
#define pb push_back
#define ppb pop_back
#define ll long long
#define ull unsigned long long
#define cntbit(x) __builtin_popcount(x)
#define uset unordered_set
#define endl '\n'
#define umap unordered_map
#define pii pair<int, int>
#define ld long double
#define pll pair<long long, long long>

const int inf = 2e9;
const int N = 1e5 + 15;
int w, h, n, m, k;

set <int> t[2][N << 2];

void multiupdate(int v, int tl, int tr, int l, int r, int val, int isx) {
	if(tl > r || tr < l || l > r)
		return;
	if(tl >= l && tr <= r) {
		t[isx][v].insert(val);
		return;
	}
	int mid = tl + tr >> 1;
	multiupdate(v << 1, tl, mid, l, r, val, isx);
	multiupdate(v << 1 | 1, mid + 1, tr, l, r, val, isx);
}
 
pii get(int v, int tl, int tr, int pos, int x, int isx) {

	pii ans = mp(-inf, inf);

	set <int>::iterator it = t[isx][v].upper_bound(x);

	if(it != t[isx][v].end())
		ans.se = min(ans.se, *it);
	if(it != t[isx][v].begin())
		ans.f = max(ans.f, *(--it));

	if(tl == tr)
		return ans;

	int mid = tl + tr >> 1;
	if(pos <= mid) {
		pii s = get(v << 1, tl, mid, pos, x, isx);
		return mp(max(s.f, ans.f), min(s.se, ans.se));
	}
	pii s = get(v << 1 | 1, mid + 1, tr, pos, x, isx);
	return mp(max(s.f, ans.f), min(s.se, ans.se));
}

int main() {
	ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
	cin >> w >> h >> n;

	multiupdate(1, 1, h, 1, h, 0, 0);
	multiupdate(1, 1, h, 1, h, w, 0);
	multiupdate(1, 1, w, 1, w, 0, 1);
	multiupdate(1, 1, w, 1, w, h, 1);

	for(int i = 1; i <= n; ++i) {
		int x, y, d;
		cin >> x >> y >> d;
		if(d == 1) {
			pii x12 = get(1, 1, h, y, x, 0);
			pii y12 = get(1, 1, w, x, y, 1);
			ll area1 = (ll)abs(y - y12.f) * abs(x12.f - x12.se);
			ll area2 = (ll)abs(y - y12.se) * abs(x12.f - x12.se);
			if(area2 < area1)
				swap(area2, area1);
			cout << area1 << ' ' << area2 << endl;
			multiupdate(1, 1, w, x12.f, x12.se, y, 1);
		}
		else {
			pii x12 = get(1, 1, h, y, x, 0);
			pii y12 = get(1, 1, w, x, y, 1);
			ll area1 = (ll)abs(y12.se - y12.f) * abs(x - x12.se);
			ll area2 = (ll)abs(y12.se - y12.f) * abs(x12.f - x);
			if(area2 < area1)
				swap(area2, area1);
			cout << area1 << ' ' << area2 << endl;
			multiupdate(1, 1, h, y12.f, y12.se, x, 0);
		}
	}
	return 0;
}

Compilation message

krave.cpp: In function 'void multiupdate(int, int, int, int, int, int, int)':
krave.cpp:34:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  int mid = tl + tr >> 1;
            ~~~^~~~
krave.cpp: In function 'std::pair<int, int> get(int, int, int, int, int, int)':
krave.cpp:53:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  int mid = tl + tr >> 1;
            ~~~^~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 37 ms 38008 KB Output is correct
2 Correct 37 ms 38008 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 40 ms 38392 KB Output is correct
2 Correct 42 ms 38756 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 155 ms 43416 KB Output is correct
2 Correct 134 ms 43256 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 160 ms 43512 KB Output is correct
2 Correct 153 ms 44280 KB Output is correct

Subtask #5
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 160 ms 43664 KB Output is correct
2 Correct 166 ms 44884 KB Output is correct

Subtask #6
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 336 ms 52368 KB Output is correct
2 Correct 345 ms 66808 KB Output is correct

Subtask #7
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 816 ms 67356 KB Output is correct
2 Correct 394 ms 71544 KB Output is correct

Subtask #8
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 750 ms 66320 KB Output is correct
2 Correct 414 ms 76540 KB Output is correct
3 Correct 167 ms 45432 KB Output is correct
4 Correct 424 ms 73820 KB Output is correct

Subtask #9
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 854 ms 67528 KB Output is correct
2 Correct 489 ms 80464 KB Output is correct
3 Correct 173 ms 45944 KB Output is correct
4 Correct 444 ms 76152 KB Output is correct

Subtask #10
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 782 ms 67696 KB Output is correct
2 Correct 351 ms 70776 KB Output is correct
3 Correct 173 ms 45688 KB Output is correct
4 Correct 514 ms 78428 KB Output is correct