oj.uz

Submission #905222

# Submission time Handle Problem Language Result Execution time Memory
905222 2024-01-12T18:39:57 Z qin Financial Report (JOI21_financial) C++17
0 / 100
 4000 ms 21232 KB 
#include <bits/stdc++.h>
#define fi first
#define se second
#define ssize(x) int(x.size())
#define pn printf("\n")
#define all(x) x.begin(),x.end()
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
int inf = 2e09; ll infll = 2e18;
int base = 1;
struct seg{
		struct Node{
				int mn1, mn2, mx, p;
				Node(){ mn1 = inf-1, mn2 = inf, mx = 0, p = 0; } // mn1 < mn2 
				Node(int m1, int m2, int mxx, int pp) { mn1 = m1, mn2 = m2, mx = mxx, p = pp; }
		};
		vector<Node> t;
		void init(int n){
				while(base < n) base <<= 1;
				t.resize(base<<1);
		}
		void merge(int i){
				t[i].mx = max(t[i<<1].mx, t[i<<1|1].mx);
				if(t[i<<1].mn1 < t[i<<1|1].mn1) t[i].mn1 = t[i<<1].mn1, t[i].mn2 = min(t[i<<1].mn2, t[i<<1|1].mn1);
				else if(t[i<<1].mn1 > t[i<<1|1].mn1) t[i].mn1 = t[i<<1|1].mn1, t[i].mn2 = min(t[i<<1].mn1, t[i<<1|1].mn2);
				else t[i].mn1 = t[i<<1].mn1, t[i].mn2 = min(t[i<<1].mn2, t[i<<1|1].mn2);
		}
		void max_node(int i, int val){ t[i].mn1 = val, t[i].mx = max(t[i].mx, val); }
		void push(int i){ if(t[i].p) max_node(i<<1, t[i].p), max_node(i<<1|1, t[i].p), t[i].p = 0; }
		void upd_point(int i, int s, int e, int x, int val, int time){
				if(s == e) return void(t[i] = Node(time, inf, val, 0));
				int mid = (s+e)>>1; push(i);
				if(x <= mid) upd_point(i<<1, s, mid, x, val, time);
				else 		 upd_point(i<<1|1, mid+1, e, x, val, time);
				merge(i);
		}
		void update(int x, int val, int time){ upd_point(1, 1, base, x, val, time); }
		void purge_point(int i, int &time){
				if(base <= i) return void(t[i] = Node());
				push(i);
				if(t[i<<1].mn1 < time)   purge_point(i<<1, time);
				if(t[i<<1|1].mn1 < time) purge_point(i<<1|1, time);
				merge(i);
		}
		void zero(int time){ purge_point(1, time); }
		int qr(int i, int s, int e, int x, int y){
				if(x <= s && e <= y) return t[i].mx;
				int mid = (s+e)>>1, ret = 0; push(i);
				if(x <= mid) ret = max(ret, qr(i<<1, s, mid, x, y));
				if(mid < y) ret = max(ret, qr(i<<1|1, mid+1, e, x, y));
				merge(i);
				return ret;
		}
		int query(int x, int y){
				if(x <= y) return qr(1, 1, base, max(1, x), min(base, y));
				return 0;
		}
		void mx_time(int i, int s, int e, int x, int y, int time){
				if(x <= s && e <= y && t[i].mn1 <= time && time < t[i].mn2) return void(max_node(i, time));
				int mid = (s+e)>>1; push(i);
				if(x <= mid && t[i<<1].mn2 <= time) mx_time(i<<1, s, mid, x, y, time);
				if(mid < y && t[i<<1|1].mn2 <= time) mx_time(i<<1|1, mid+1, e, x, y, time);
				merge(i);
		}
		void max_time(int l, int r, int time){ mx_time(1, 1, base, l, r, time); }
};
void answer(){
		int n, d; scanf("%d%d", &n, &d);
		set<int> sc;
		vector<int> t(n+1);
		for(int i = 1; i <= n; ++i) scanf("%d", &t[i]), sc.emplace(t[i]);
		unordered_map<int, int> mp; int it = 0;
		for(int u : sc) mp[u] = ++it;
		for(int i = 1; i <= n; ++i) t[i] = mp[t[i]];
		
		seg seg; seg.init(n);
		int result = 0;
		for(int i = 1; i <= n; ++i){
				int mn = inf, mn_time = 0;
				for(int j = i-1; j >= max(1, i-d); --j) if(t[j] <= mn) mn = t[j], mn_time = j;
				if(mn != inf) seg.max_time(mn, base, mn_time), seg.zero(i-d);
				if(i != n) seg.update(t[i], max(seg.query(1, t[i]-1)+1, seg.query(t[i], t[i])), i);
				else result = max(seg.query(1, t[i]-1)+1, seg.query(t[i], base));
				//~ for(int j = 1; j <= n; ++j) printf("%d %d, ", seg.t[j].fi, seg.t[j].se);
				//~ pn;
		}
		printf("%d\n", result);
}
int main(){
		int T = 1;
		for(++T; --T; ) answer();
		return 0;
}

Compilation message

Main.cpp: In function 'void answer()':
Main.cpp:69:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   69 |   int n, d; scanf("%d%d", &n, &d);
      |             ~~~~~^~~~~~~~~~~~~~~~
Main.cpp:72:36: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   72 |   for(int i = 1; i <= n; ++i) scanf("%d", &t[i]), sc.emplace(t[i]);
      |                               ~~~~~^~~~~~~~~~~~~

Subtask #1
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 600 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Incorrect 1 ms 348 KB Output isn't correct
16 Halted 0 ms 0 KB -

Subtask #2
0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 600 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Incorrect 1 ms 348 KB Output isn't correct
16 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 600 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Incorrect 1 ms 348 KB Output isn't correct
16 Halted 0 ms 0 KB -

Subtask #4
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 121 ms 20956 KB Output is correct
2 Incorrect 236 ms 20576 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5
0 / 5.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4042 ms 21232 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 0 ms 600 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Incorrect 1 ms 348 KB Output isn't correct
16 Halted 0 ms 0 KB -