oj.uz

Submission #216780

# Submission time Handle Problem Language Result Execution time Memory
216780 2020-03-28T04:11:06 Z abacaba Treatment Project (JOI20_treatment) C++14
100 / 100
 930 ms 72016 KB 
#include <iostream>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <cstring>
#include <chrono>
#include <vector>
#include <map>
#include <random>
#include <set>
#include <algorithm>
#include <math.h>
#include <cstdio>
#include <stdio.h>
#include <queue>
#include <bitset>
#include <cstdlib>
#include <deque>
#include <cassert>
#include <stack>
using namespace std;
 
#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 endl '\n'
#define uset unordered_set
#define umap unordered_map
#define all(x) x.begin(), x.end()
#define pii pair<int, int>
#define ld long double
#define pll pair<long long, long long>

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

template <typename T> inline T range(T l, T r) {
	return uniform_int_distribution <T>(l, r)(rng);
}

template <typename T> void Min(T &a, T b) {
    a = min(a, b);
}
 
template <typename T> void Max(T &a, T b) {
    a = max(a, b);
}

const int mod = 1e9 + 7;
const ll inf = 2e18;
const int N = 1e5 + 15;
int n, m;
ll ans = -1;

vector <int> compress;
int sz;

ll d[N];

priority_queue <pair <ll, int>, vector <pair <ll, int>>, greater <pair <ll, int>>> q;

inline int gt(int x) {
	return lower_bound(compress.begin(), compress.end(), x) - compress.begin() + 1;
}

struct pt {
	int t, l, r, c;
} a[N];

struct segment_tree {
	priority_queue <pii, vector <pii>, greater <pii>> t[N << 2];
	void get(int v, int tl, int tr, int l, int r, int val, ll nw) {
		if(tl > r || tr < l)
			return;
		if(tl >= l && tr <= r) {
			while(!t[v].empty() && t[v].top().f <= val) {
				int i = t[v].top().se;
				if(d[i] > nw + a[i].c)
					q.push(mp(d[i] = nw + a[i].c, i));
				t[v].pop();
			}
			return;
		}
		int mid = tl + tr >> 1;
		get(v << 1, tl, mid, l, r, val, nw);
		get(v << 1 | 1, mid + 1, tr, l, r, val, nw);
	}
	inline void update(int v, int tl, int tr, int pos, pii val) {
		while(1) {
			t[v].push(val);

			if(tl == tr)
				break;

			int mid = tl + tr >> 1;
			if(pos <= mid)
				v <<= 1, tr = mid;
			else
				v = v << 1 | 1, tl = mid + 1;
		}
	}
} t1, t2;

inline int nxt() {
	int x;
	scanf("%d", &x);
	return x;
}

main() {
	fill(d, d + N, inf);
	n = nxt(); m = nxt();
	for(int i = 1; i <= m; ++i) {
		a[i].t = nxt(); a[i].l = nxt(); a[i].r = nxt(); a[i].c = nxt();
		compress.pb(a[i].t);
	}
	sort(compress.begin(), compress.end());
	compress.erase(unique(compress.begin(), compress.end()), compress.end());

	sz = compress.size();

	for(int i = 1; i <= m; ++i) {
		--a[i].l;
		if(a[i].l == 0) {
			d[i] = a[i].c;
			q.push({d[i], i});
		}
		else {
			t1.update(1, 1, sz, gt(a[i].t), mp(a[i].l + a[i].t, i));
			t2.update(1, 1, sz, gt(a[i].t), mp(a[i].l - a[i].t, i));
		}
	}
	while(!q.empty()) {
		int dist = q.top().f, i = q.top().se;
		q.pop();
		if(dist > d[i])
			continue;

		t1.get(1, 1, sz, gt(a[i].t), sz, a[i].r + a[i].t, d[i]);
		t2.get(1, 1, sz, 1, gt(a[i].t), a[i].r - a[i].t, d[i]);
	}
	for(int i = 1; i <= m; ++i) {
		if(a[i].r != n || d[i] == inf)
			continue;
		if(ans == -1 || d[i] < ans)
			ans = d[i];
	}
	cout << ans << endl;
	return 0;
}

Compilation message

treatment.cpp: In member function 'void segment_tree::get(int, int, int, int, int, int, long long int)':
treatment.cpp:88:16: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   int mid = tl + tr >> 1;
             ~~~^~~~
treatment.cpp: In member function 'void segment_tree::update(int, int, int, int, std::pair<int, int>)':
treatment.cpp:99:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
    int mid = tl + tr >> 1;
              ~~~^~~~
treatment.cpp: At global scope:
treatment.cpp:114:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main() {
      ^
treatment.cpp: In function 'int nxt()':
treatment.cpp:110:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &x);
  ~~~~~^~~~~~~~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 116 ms 30572 KB Output is correct
2 Correct 112 ms 30572 KB Output is correct
3 Correct 131 ms 30568 KB Output is correct
4 Correct 130 ms 30364 KB Output is correct
5 Correct 134 ms 31884 KB Output is correct
6 Correct 128 ms 30572 KB Output is correct
7 Correct 123 ms 30568 KB Output is correct
8 Correct 88 ms 30568 KB Output is correct
9 Correct 88 ms 30572 KB Output is correct
10 Correct 88 ms 30572 KB Output is correct
11 Correct 144 ms 31852 KB Output is correct
12 Correct 142 ms 31856 KB Output is correct
13 Correct 154 ms 31956 KB Output is correct
14 Correct 153 ms 31856 KB Output is correct
15 Correct 136 ms 29980 KB Output is correct
16 Correct 134 ms 30572 KB Output is correct
17 Correct 140 ms 30580 KB Output is correct
18 Correct 139 ms 31856 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 26240 KB Output is correct
2 Correct 19 ms 26240 KB Output is correct
3 Correct 19 ms 26112 KB Output is correct
4 Correct 19 ms 26112 KB Output is correct
5 Correct 19 ms 26112 KB Output is correct
6 Correct 19 ms 26112 KB Output is correct
7 Correct 19 ms 26112 KB Output is correct
8 Correct 19 ms 26112 KB Output is correct
9 Correct 19 ms 26112 KB Output is correct
10 Correct 19 ms 26112 KB Output is correct
11 Correct 19 ms 26112 KB Output is correct
12 Correct 21 ms 26112 KB Output is correct
13 Correct 19 ms 26112 KB Output is correct
14 Correct 19 ms 26240 KB Output is correct
15 Correct 19 ms 26240 KB Output is correct
16 Correct 19 ms 26112 KB Output is correct
17 Correct 19 ms 26240 KB Output is correct
18 Correct 20 ms 26112 KB Output is correct
19 Correct 19 ms 26240 KB Output is correct

Subtask #3
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 19 ms 26240 KB Output is correct
2 Correct 19 ms 26240 KB Output is correct
3 Correct 19 ms 26112 KB Output is correct
4 Correct 19 ms 26112 KB Output is correct
5 Correct 19 ms 26112 KB Output is correct
6 Correct 19 ms 26112 KB Output is correct
7 Correct 19 ms 26112 KB Output is correct
8 Correct 19 ms 26112 KB Output is correct
9 Correct 19 ms 26112 KB Output is correct
10 Correct 19 ms 26112 KB Output is correct
11 Correct 19 ms 26112 KB Output is correct
12 Correct 21 ms 26112 KB Output is correct
13 Correct 19 ms 26112 KB Output is correct
14 Correct 19 ms 26240 KB Output is correct
15 Correct 19 ms 26240 KB Output is correct
16 Correct 19 ms 26112 KB Output is correct
17 Correct 19 ms 26240 KB Output is correct
18 Correct 20 ms 26112 KB Output is correct
19 Correct 19 ms 26240 KB Output is correct
20 Correct 37 ms 27520 KB Output is correct
21 Correct 37 ms 27520 KB Output is correct
22 Correct 32 ms 27512 KB Output is correct
23 Correct 30 ms 27520 KB Output is correct
24 Correct 38 ms 28024 KB Output is correct
25 Correct 38 ms 28152 KB Output is correct
26 Correct 37 ms 28160 KB Output is correct
27 Correct 36 ms 28152 KB Output is correct
28 Correct 37 ms 28032 KB Output is correct
29 Correct 38 ms 28160 KB Output is correct
30 Correct 31 ms 28160 KB Output is correct
31 Correct 31 ms 28160 KB Output is correct
32 Correct 40 ms 28408 KB Output is correct
33 Correct 40 ms 28408 KB Output is correct
34 Correct 39 ms 27904 KB Output is correct
35 Correct 42 ms 28408 KB Output is correct
36 Correct 39 ms 28416 KB Output is correct
37 Correct 39 ms 27896 KB Output is correct

Subtask #4
61.0 / 61.0

# Verdict Execution time Memory Grader output
1 Correct 116 ms 30572 KB Output is correct
2 Correct 112 ms 30572 KB Output is correct
3 Correct 131 ms 30568 KB Output is correct
4 Correct 130 ms 30364 KB Output is correct
5 Correct 134 ms 31884 KB Output is correct
6 Correct 128 ms 30572 KB Output is correct
7 Correct 123 ms 30568 KB Output is correct
8 Correct 88 ms 30568 KB Output is correct
9 Correct 88 ms 30572 KB Output is correct
10 Correct 88 ms 30572 KB Output is correct
11 Correct 144 ms 31852 KB Output is correct
12 Correct 142 ms 31856 KB Output is correct
13 Correct 154 ms 31956 KB Output is correct
14 Correct 153 ms 31856 KB Output is correct
15 Correct 136 ms 29980 KB Output is correct
16 Correct 134 ms 30572 KB Output is correct
17 Correct 140 ms 30580 KB Output is correct
18 Correct 139 ms 31856 KB Output is correct
19 Correct 19 ms 26240 KB Output is correct
20 Correct 19 ms 26240 KB Output is correct
21 Correct 19 ms 26112 KB Output is correct
22 Correct 19 ms 26112 KB Output is correct
23 Correct 19 ms 26112 KB Output is correct
24 Correct 19 ms 26112 KB Output is correct
25 Correct 19 ms 26112 KB Output is correct
26 Correct 19 ms 26112 KB Output is correct
27 Correct 19 ms 26112 KB Output is correct
28 Correct 19 ms 26112 KB Output is correct
29 Correct 19 ms 26112 KB Output is correct
30 Correct 21 ms 26112 KB Output is correct
31 Correct 19 ms 26112 KB Output is correct
32 Correct 19 ms 26240 KB Output is correct
33 Correct 19 ms 26240 KB Output is correct
34 Correct 19 ms 26112 KB Output is correct
35 Correct 19 ms 26240 KB Output is correct
36 Correct 20 ms 26112 KB Output is correct
37 Correct 19 ms 26240 KB Output is correct
38 Correct 37 ms 27520 KB Output is correct
39 Correct 37 ms 27520 KB Output is correct
40 Correct 32 ms 27512 KB Output is correct
41 Correct 30 ms 27520 KB Output is correct
42 Correct 38 ms 28024 KB Output is correct
43 Correct 38 ms 28152 KB Output is correct
44 Correct 37 ms 28160 KB Output is correct
45 Correct 36 ms 28152 KB Output is correct
46 Correct 37 ms 28032 KB Output is correct
47 Correct 38 ms 28160 KB Output is correct
48 Correct 31 ms 28160 KB Output is correct
49 Correct 31 ms 28160 KB Output is correct
50 Correct 40 ms 28408 KB Output is correct
51 Correct 40 ms 28408 KB Output is correct
52 Correct 39 ms 27904 KB Output is correct
53 Correct 42 ms 28408 KB Output is correct
54 Correct 39 ms 28416 KB Output is correct
55 Correct 39 ms 27896 KB Output is correct
56 Correct 541 ms 56424 KB Output is correct
57 Correct 533 ms 56424 KB Output is correct
58 Correct 589 ms 62952 KB Output is correct
59 Correct 617 ms 63208 KB Output is correct
60 Correct 418 ms 57576 KB Output is correct
61 Correct 593 ms 63208 KB Output is correct
62 Correct 554 ms 56424 KB Output is correct
63 Correct 628 ms 69484 KB Output is correct
64 Correct 661 ms 69644 KB Output is correct
65 Correct 147 ms 32104 KB Output is correct
66 Correct 415 ms 57584 KB Output is correct
67 Correct 751 ms 69340 KB Output is correct
68 Correct 676 ms 69348 KB Output is correct
69 Correct 601 ms 68232 KB Output is correct
70 Correct 821 ms 69456 KB Output is correct
71 Correct 647 ms 69200 KB Output is correct
72 Correct 545 ms 69352 KB Output is correct
73 Correct 767 ms 69484 KB Output is correct
74 Correct 319 ms 69224 KB Output is correct
75 Correct 296 ms 69140 KB Output is correct
76 Correct 717 ms 67560 KB Output is correct
77 Correct 802 ms 71912 KB Output is correct
78 Correct 805 ms 67724 KB Output is correct
79 Correct 921 ms 69736 KB Output is correct
80 Correct 861 ms 65508 KB Output is correct
81 Correct 522 ms 69992 KB Output is correct
82 Correct 839 ms 65640 KB Output is correct
83 Correct 930 ms 69864 KB Output is correct
84 Correct 895 ms 69864 KB Output is correct
85 Correct 707 ms 69608 KB Output is correct
86 Correct 705 ms 69584 KB Output is correct
87 Correct 780 ms 69860 KB Output is correct
88 Correct 769 ms 69608 KB Output is correct
89 Correct 763 ms 69608 KB Output is correct
90 Correct 840 ms 71788 KB Output is correct
91 Correct 794 ms 71144 KB Output is correct
92 Correct 732 ms 69860 KB Output is correct
93 Correct 881 ms 69736 KB Output is correct
94 Correct 862 ms 69736 KB Output is correct
95 Correct 844 ms 69608 KB Output is correct
96 Correct 803 ms 71784 KB Output is correct
97 Correct 788 ms 71908 KB Output is correct
98 Correct 812 ms 71872 KB Output is correct
99 Correct 805 ms 71784 KB Output is correct
100 Correct 765 ms 70504 KB Output is correct
101 Correct 818 ms 71820 KB Output is correct
102 Correct 791 ms 72016 KB Output is correct
103 Correct 683 ms 70120 KB Output is correct