oj.uz

Submission #204509

# Submission time Handle Problem Language Result Execution time Memory
204509 2020-02-26T07:11:55 Z theStaticMind Worst Reporter 3 (JOI18_worst_reporter3) C++14
100 / 100
 805 ms 33552 KB 
#include<bits/stdc++.h>
#define pb push_back
#define ii pair<int,int>
#define all(x) (x).begin(),(x).end()
#define sz(x) (int)(x).size()
#define INF 100000000000000000
#define modulo 1000000007
#define mod 998244353
#define int long long int
using namespace std;

vector<int> slow;
vector<ii> mv;

int32_t main(){
      ios_base::sync_with_stdio(false);
      cin.tie(NULL);

      int n, q;
      cin >> n >> q;
      slow.pb(1);
      for(int i = 0; i < n; i++){
      	int x;
      	cin >> x;
      	slow.pb(x);
      }
      mv.pb({1, 1});
      for(int i = 1; i < slow.size(); i++){
      	int px = mv.back().first;
      	int pt = mv.back().second;
      	int cx = slow[i];
//      	if(pt > 3e9)break;
      	int k = (cx - 1) / px + 1;
      	mv.pb({k * px, k * pt});
        assert(2e18 / k > pt);
      }

     	while(q--){
     		int t, x, y;
     		cin >> t >> x >> y;

     		int l = 0, r = sz(mv) - 1, low = INF, high = -INF;
     		while(l <= r){
     			int mid = (l + r) / 2;
     			int curr = -mid + (t / mv[mid].second) * mv[mid].first;
     			if(curr <= y){
     				low = mid;
     				r = mid - 1;
     			}
     			else l = mid + 1;
     		}
     		l = 0, r = sz(mv) - 1;
     		while(l <= r){
     			int mid = (l + r) / 2;
     			int curr = -mid + (t / mv[mid].second) * mv[mid].first;
     			if(x <= curr){
     				high = mid;
     				l = mid + 1;
     			}
     			else r = mid - 1;
     		}
     		if(high < low)cout << "0\n";
     		else cout << high - low + 1 << "\n";
     	}
}

Compilation message

worst_reporter3.cpp: In function 'int32_t main()':
worst_reporter3.cpp:28:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
       for(int i = 1; i < slow.size(); i++){
                      ~~^~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 763 ms 15288 KB Output is correct
2 Correct 779 ms 30808 KB Output is correct
3 Correct 805 ms 30776 KB Output is correct
4 Correct 776 ms 30852 KB Output is correct
5 Correct 740 ms 30800 KB Output is correct
6 Correct 731 ms 30736 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 376 KB Output is correct
6 Correct 5 ms 376 KB Output is correct

Subtask #3
81.0 / 81.0

# Verdict Execution time Memory Grader output
1 Correct 763 ms 15288 KB Output is correct
2 Correct 779 ms 30808 KB Output is correct
3 Correct 805 ms 30776 KB Output is correct
4 Correct 776 ms 30852 KB Output is correct
5 Correct 740 ms 30800 KB Output is correct
6 Correct 731 ms 30736 KB Output is correct
7 Correct 6 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 422 ms 29392 KB Output is correct
14 Correct 441 ms 29808 KB Output is correct
15 Correct 411 ms 28624 KB Output is correct
16 Correct 431 ms 29128 KB Output is correct
17 Correct 550 ms 33364 KB Output is correct
18 Correct 574 ms 33360 KB Output is correct
19 Correct 550 ms 33360 KB Output is correct
20 Correct 539 ms 33536 KB Output is correct
21 Correct 537 ms 33328 KB Output is correct
22 Correct 560 ms 33552 KB Output is correct
23 Correct 546 ms 33360 KB Output is correct
24 Correct 553 ms 33488 KB Output is correct
25 Correct 772 ms 30668 KB Output is correct
26 Correct 779 ms 31056 KB Output is correct
27 Correct 603 ms 32968 KB Output is correct
28 Correct 573 ms 33108 KB Output is correct
29 Correct 580 ms 32708 KB Output is correct
30 Correct 593 ms 32932 KB Output is correct
31 Correct 602 ms 33104 KB Output is correct
32 Correct 541 ms 29392 KB Output is correct
33 Correct 5 ms 376 KB Output is correct