Submission #555117

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
555117	2022-04-30T07:49:07 Z	IvanJ	Meteors (POI11_met)	C++17	74 / 100	1010 ms	36332 KB

#include<bits/stdc++.h>
 
#define pb push_back
#define x first
#define y second
 
using namespace std;
 
typedef long long ll;
typedef pair<int, int> ii;
 
const int maxn = 3e5 + 5;
 
int n, m, k;
vector<int> own[maxn];
ll need[maxn];
pair<ii, int> qs[maxn];
vector<pair<ii, int>> A[maxn];
vector<pair<ii, int>> A1[maxn];
int ans[maxn];
ll fwt[maxn];
 
void update(int x, ll v) {
	x++;
	for(;x < maxn;x += (x & -x)) fwt[x] += v;
}
 
ll query(int x) {
	x++;
	ll ret = 0;
	for(;x > 0;x -= (x & -x)) ret += fwt[x];
	return ret;
}
 
int main() {
	scanf("%d %d", &n, &m);
	for(int i = 0;i < m;i++) {
		int x;scanf("%d", &x);x--;
		own[x].pb(i);
	}
	for(int i = 0;i < n;i++) scanf("%lld", need + i);
	
	scanf("%d", &k);
	for(int i = 0;i < k;i++) {
		int l, r, a;
		scanf("%d %d %d", &l, &r, &a);
		l--, r--;
		qs[i] = {{l, r}, a};
	}
	
	for(int i = 0;i < n;i++) {
		int mid = (k - 1) / 2;
		A[mid].pb({{0, k - 1}, i});
	}
	
	while(true) {
		for(int i = 0;i < maxn;i++) fwt[i] = 0;
		int flag = 0;
		for(int i = 0;i < k;i++) {
			if(qs[i].x.x > qs[i].x.y) {
				update(qs[i].x.x, qs[i].y);
				update(m, -qs[i].y);
				update(0, qs[i].y);
				update(qs[i].x.y + 1, -qs[i].y);
			} else {
				update(qs[i].x.x, qs[i].y);
				update(qs[i].x.y + 1, -qs[i].y);
			}
			
			for(pair<ii, int> p : A[i]) {
				//cout << i << "->" << p.x.x << ' ' << p.x.y << " (" << p.y << ")\n";
				if(p.x.x > p.x.y) {continue;}
				flag = 1;
				ll sum = 0;
				for(int j : own[p.y]) sum += query(j);
				//cout << sum << "\n";
				pair<ii, int> p1 = p;
				if(sum < need[p.y]) {
					int mid = i + 1 + (p.x.y - i - 1) / 2;
					p1.x.x = i + 1;
					A1[mid].pb(p1);
				}
				if(sum >= need[p.y]) {
					int mid = p.x.x + (i - 1 - p.x.x) / 2;
					p1.x.y = i - 1;
					A1[mid].pb(p1);
					ans[p.y] = i + 1;
				}
			}
		}
		
		for(int i = 0;i < k;i++) A[i].clear(), A[i].shrink_to_fit(), A[i] = A1[i], A1[i].clear(), A1[i].shrink_to_fit();
		if(!flag) break;
	}
	
	for(int i = 0;i < n;i++) {
		if(!ans[i]) printf("NIE\n"); else printf("%d\n", ans[i]);
	}
	return 0;
}

Compilation message

met.cpp: In function 'int main()':
met.cpp:36:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   36 |  scanf("%d %d", &n, &m);
      |  ~~~~~^~~~~~~~~~~~~~~~~
met.cpp:38:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   38 |   int x;scanf("%d", &x);x--;
      |         ~~~~~^~~~~~~~~~
met.cpp:41:32: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   41 |  for(int i = 0;i < n;i++) scanf("%lld", need + i);
      |                           ~~~~~^~~~~~~~~~~~~~~~~~
met.cpp:43:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   43 |  scanf("%d", &k);
      |  ~~~~~^~~~~~~~~~
met.cpp:46:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   46 |   scanf("%d %d %d", &l, &r, &a);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	14 ms	23764 KB	Output is correct
2	Correct	17 ms	23784 KB	Output is correct
3	Correct	14 ms	23856 KB	Output is correct

Subtask #2
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	13 ms	23856 KB	Output is correct
2	Correct	14 ms	23764 KB	Output is correct
3	Correct	20 ms	23788 KB	Output is correct

Subtask #3
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	87 ms	25036 KB	Output is correct
2	Correct	171 ms	26276 KB	Output is correct
3	Correct	127 ms	25804 KB	Output is correct

Subtask #4
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	132 ms	25496 KB	Output is correct
2	Correct	147 ms	25552 KB	Output is correct
3	Correct	168 ms	26444 KB	Output is correct
4	Correct	40 ms	25216 KB	Output is correct

Subtask #5
13.0 / 13.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	114 ms	25212 KB	Output is correct
2	Correct	161 ms	26692 KB	Output is correct
3	Correct	141 ms	24468 KB	Output is correct
4	Correct	148 ms	26116 KB	Output is correct

Subtask #6
13.0 / 13.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	148 ms	24608 KB	Output is correct
2	Correct	156 ms	25560 KB	Output is correct
3	Correct	97 ms	24864 KB	Output is correct
4	Correct	167 ms	26888 KB	Output is correct

Subtask #7
0 / 13.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1010 ms	36332 KB	Output is correct
2	Incorrect	602 ms	28568 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #8
0 / 13.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	964 ms	35780 KB	Output is correct
2	Incorrect	745 ms	28620 KB	Output isn't correct
3	Halted	0 ms	0 KB	-