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답안 #738971

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
738971 2023-05-09T17:51:11 Z shoryu386 벽 (IOI14_wall) C++17
61 / 100
 814 ms 262144 KB 
#include <bits/stdc++.h>
#include "wall.h"
using namespace std;
using ll = long long;
#define llINF (LLONG_MAX/10)
const int MAXN = 2000007;  // 1-based

int N;
ll A[MAXN];

struct Node {
	ll sum;  // Sum tag
	ll max1;  // Max value
	ll max2;  // Second Max value
	ll maxc;  // Max value count
	ll min1;  // Min value
	ll min2;  // Second Min value
	ll minc;  // Min value count
	ll lazy;  // Lazy tag
} T[MAXN * 4];

void merge(int t) {
	// sum
	T[t].sum = T[t << 1].sum + T[t << 1 | 1].sum;

	// max
	if (T[t << 1].max1 == T[t << 1 | 1].max1) {
		T[t].max1 = T[t << 1].max1;
		T[t].max2 = max(T[t << 1].max2, T[t << 1 | 1].max2);
		T[t].maxc = T[t << 1].maxc + T[t << 1 | 1].maxc;
	} else {
		if (T[t << 1].max1 > T[t << 1 | 1].max1) {
			T[t].max1 = T[t << 1].max1;
			T[t].max2 = max(T[t << 1].max2, T[t << 1 | 1].max1);
			T[t].maxc = T[t << 1].maxc;
		} else {
			T[t].max1 = T[t << 1 | 1].max1;
			T[t].max2 = max(T[t << 1].max1, T[t << 1 | 1].max2);
			T[t].maxc = T[t << 1 | 1].maxc;
		}
	}

	// min
	if (T[t << 1].min1 == T[t << 1 | 1].min1) {
		T[t].min1 = T[t << 1].min1;
		T[t].min2 = min(T[t << 1].min2, T[t << 1 | 1].min2);
		T[t].minc = T[t << 1].minc + T[t << 1 | 1].minc;
	} else {
		if (T[t << 1].min1 < T[t << 1 | 1].min1) {
			T[t].min1 = T[t << 1].min1;
			T[t].min2 = min(T[t << 1].min2, T[t << 1 | 1].min1);
			T[t].minc = T[t << 1].minc;
		} else {
			T[t].min1 = T[t << 1 | 1].min1;
			T[t].min2 = min(T[t << 1].min1, T[t << 1 | 1].min2);
			T[t].minc = T[t << 1 | 1].minc;
		}
	}
}

void push_add(int t, int tl, int tr, ll v) {
	if (v == 0) {
		return;
	}
	T[t].sum += (tr - tl + 1) *v;
	T[t].max1 += v;
	if (T[t].max2 != -llINF) {
		T[t].max2 += v;
	}
	T[t].min1 += v;
	if (T[t].min2 != llINF) {
		T[t].min2 += v;
	}
	T[t].lazy += v;
}

// corresponds to a chmin update
void push_max(int t, ll v, bool l) {
	if (v >= T[t].max1) {
		return;
	}
	T[t].sum -= T[t].max1 * T[t].maxc;
	T[t].max1 = v;
	T[t].sum += T[t].max1 * T[t].maxc;
	if (l) {
		T[t].min1 = T[t].max1;
	} else {
		if (v <= T[t].min1) {
			T[t].min1 = v;
		} else if (v < T[t].min2) {
			T[t].min2 = v;
		}
	}
}

// corresponds to a chmax update
void push_min(int t, ll v, bool l) {
	if (v <= T[t].min1) {
		return;
	}
	T[t].sum -= T[t].min1 * T[t].minc;
	T[t].min1 = v;
	T[t].sum += T[t].min1 * T[t].minc;
	if (l) {
		T[t].max1 = T[t].min1;
	} else {
		if (v >= T[t].max1) {
			T[t].max1 = v;
		} else if (v > T[t].max2) {
			T[t].max2 = v;
		}
	}
}

void pushdown(int t, int tl, int tr) {
	if (tl == tr)
		return;
	// sum
	int tm = (tl + tr) >> 1;
	push_add(t << 1, tl, tm, T[t].lazy);
	push_add(t << 1 | 1, tm + 1, tr, T[t].lazy);
	T[t].lazy = 0;

	// max
	push_max(t << 1, T[t].max1, tl == tm);
	push_max(t << 1 | 1, T[t].max1, tm + 1 == tr);

	// min
	push_min(t << 1, T[t].min1, tl == tm);
	push_min(t << 1 | 1, T[t].min1, tm + 1 == tr);
}

void build(int t=1, int tl=0, int tr=N-1) {
	T[t].lazy = 0;
	if (tl == tr) {
		T[t].sum = T[t].max1 = T[t].min1 = A[tl];
		T[t].maxc = T[t].minc = 1;
		T[t].max2 = -llINF;
		T[t].min2 = llINF;
		return;
	}

	int tm = (tl + tr) >> 1;
	build(t << 1, tl, tm);
	build(t << 1 | 1, tm + 1, tr);
	merge(t);
}

void update_add(int l, int r, ll v, int t=1, int tl=0, int tr=N-1) {
	if (r < tl || tr < l) {
		return;
	}
	if (l <= tl && tr <= r) {
		push_add(t, tl, tr, v);
		return;
	}
	pushdown(t, tl, tr);

	int tm = (tl + tr) >> 1;
	update_add(l, r, v, t << 1, tl, tm);
	update_add(l, r, v, t << 1 | 1, tm + 1, tr);
	merge(t);
}

void update_chmin(int l, int r, ll v, int t=1, int tl=0, int tr=N-1) {
	if (r < tl || tr < l || v >= T[t].max1) {
		return;
	}
	if (l <= tl && tr <= r && v > T[t].max2) {
		push_max(t, v, tl == tr);
		return;
	}
	pushdown(t, tl, tr);

	int tm = (tl + tr) >> 1;
	update_chmin(l, r, v, t << 1, tl, tm);
	update_chmin(l, r, v, t << 1 | 1, tm + 1, tr);
	merge(t);
}

void update_chmax(int l, int r, ll v, int t=1, int tl=0, int tr=N-1) {
	if (r < tl || tr < l || v <= T[t].min1) {
		return;
	}
	if (l <= tl && tr <= r && v < T[t].min2) {
		push_min(t, v, tl == tr);
		return;
	}
	pushdown(t, tl, tr);

	int tm = (tl + tr) >> 1;
	update_chmax(l, r, v, t << 1, tl, tm);
	update_chmax(l, r, v, t << 1 | 1, tm + 1, tr);
	merge(t);
}

ll query_sum(int l, int r, int t=1, int tl=0, int tr=N-1) {
	if (r < tl || tr < l) {
		return 0;
	}
	if (l <= tl && tr <= r) {
		return T[t].sum;
	}
	pushdown(t, tl, tr);

	int tm = (tl + tr) >> 1;
	return query_sum(l, r, t << 1, tl, tm) + query_sum(l, r, t << 1 | 1, tm + 1, tr);
}



void buildWall(int n, int k, int op[], int left[], int right[], int height[], int finalHeight[]){
	for (int x = 0; x < n; x++) A[x] = 0;
	N = n;
	
	build();
	
	for (int x = 0; x < k; x++){
		if (op[x] == 1) update_chmax(left[x], right[x], height[x]);
		else update_chmin(left[x], right[x], height[x]);
	}
	
	for (int x = 0; x < n; x++) finalHeight[x] = query_sum(x, x);
}


/*
int main() {
	int Q;

	cin >> N >> Q;
	for (int i = 0; i < N; i++) {
		cin >> A[i];
	}
	build();
	for (int q = 0; q < Q; q++) {
		int t; cin >> t;
		if (t == 0) {
			int l, r;
			ll x;
			cin >> l >> r >> x;
			update_chmin(l, r, x);
		} else if (t == 1) {
			int l, r;
			ll x;
			cin >> l >> r >> x;
			update_chmax(l, r, x);
		} else if (t == 2) {
			int l, r;
			ll x;
			cin >> l >> r >> x;
			update_add(l, r, x);
		} else if (t == 3) {
			int l, r;
			cin >> l >> r;
			cout << query_sum(l, r) << '\n';
		}
	}
}
*/

Subtask #1
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 2 ms 340 KB Output is correct
3 Correct 2 ms 340 KB Output is correct
4 Correct 10 ms 2564 KB Output is correct
5 Correct 9 ms 2516 KB Output is correct
6 Correct 9 ms 2516 KB Output is correct

Subtask #2
24.0 / 24.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 136 ms 8176 KB Output is correct
3 Correct 75 ms 7864 KB Output is correct
4 Correct 195 ms 25844 KB Output is correct
5 Correct 216 ms 26392 KB Output is correct
6 Correct 258 ms 26328 KB Output is correct

Subtask #3
29.0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 2 ms 340 KB Output is correct
3 Correct 2 ms 340 KB Output is correct
4 Correct 10 ms 2516 KB Output is correct
5 Correct 9 ms 2564 KB Output is correct
6 Correct 8 ms 2516 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 138 ms 8128 KB Output is correct
9 Correct 88 ms 7884 KB Output is correct
10 Correct 199 ms 25972 KB Output is correct
11 Correct 209 ms 26444 KB Output is correct
12 Correct 248 ms 26424 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 140 ms 8116 KB Output is correct
15 Correct 43 ms 5116 KB Output is correct
16 Correct 731 ms 26184 KB Output is correct
17 Correct 405 ms 26120 KB Output is correct
18 Correct 406 ms 26188 KB Output is correct

Subtask #4
0 / 39.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 2 ms 340 KB Output is correct
3 Correct 2 ms 340 KB Output is correct
4 Correct 12 ms 2516 KB Output is correct
5 Correct 10 ms 2516 KB Output is correct
6 Correct 9 ms 2560 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 126 ms 8052 KB Output is correct
9 Correct 80 ms 7988 KB Output is correct
10 Correct 196 ms 25852 KB Output is correct
11 Correct 217 ms 26360 KB Output is correct
12 Correct 270 ms 26460 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 136 ms 8092 KB Output is correct
15 Correct 43 ms 5164 KB Output is correct
16 Correct 814 ms 26188 KB Output is correct
17 Correct 420 ms 26220 KB Output is correct
18 Correct 405 ms 26096 KB Output is correct
19 Runtime error 266 ms 262144 KB Execution killed with signal 9
20 Halted 0 ms 0 KB -