oj.uz

Submission #198027

# Submission time Handle Problem Language Result Execution time Memory
198027 2020-01-24T14:03:50 Z AMO5 Worst Reporter 3 (JOI18_worst_reporter3) C++
100 / 100
 1847 ms 15804 KB 
#include <bits/stdc++.h>

using namespace std;

#define fi first
#define se second
#define mp make_pair
#define pb push_back
#define all(x) (x).begin(), (x).end() 
#define MOD 1000000007

typedef long long ll;
typedef pair <int, int> ii;
typedef pair <ll, ll> pll;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef long double ld;

long long INF=LLONG_MAX;

ll n,q,d[511111],per[511111];
ll md=0;
vector < pair<ll, pll> > seg;

void upd(){
	ll cur = d[1], pre = 1;
	per[1] = d[1];
	for(ll i = 2; i <= n; i++){
		ll tm = (cur>=d[i]?1:d[i]/cur+(d[i]%cur?1:0));
		per[i] = tm*cur;
		if(per[i]>cur){
			seg.pb(mp(cur,mp(pre,i-1)));
			pre = i;
			cur = per[i];
		}
	}
	seg.pb(mp(cur,mp(pre,n)));
}

ll solve(ll ti, ll x, ll y){
	ll ans = 0;
	if(ti>=x&&ti<=y)ans++;
	for(int i = 0; i < seg.size(); i++){
		ll cur = seg[i].fi; ll le = seg[i].se.fi; ll ri = seg[i].se.se;
		ll moves = (ti/cur)*cur;
		ll pos_l = -1*ri; ll pos_r = -1*le;
		pos_l += moves; pos_r += moves;
		pos_l=max(pos_l,x);
		pos_r=min(pos_r,y);
		if(pos_l>=x&&pos_l<=y&&pos_r>=x&&pos_r<=y){
			ans += pos_r-pos_l+1;
		}
	}
	return ans;
}

int main()
{
    ios_base::sync_with_stdio(0); cin.tie(0);
    //freopen("input.txt","r",stdin); freopen("output.txt","w",stdout);
	cin >> n >> q;
	for(int i = 1; i <= n; i++){
		cin >> d[i];
		md = max(md,d[i]);
	}
	upd();
	ll ti,le,ri;
	while(q--){
		cin >> ti >> le >> ri;
		ll ans = 0;
		ans += solve(ti,le,ri);
		cout << ans << endl;
	}
}

Compilation message

worst_reporter3.cpp: In function 'll solve(ll, ll, ll)':
worst_reporter3.cpp:43:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0; i < seg.size(); i++){
                 ~~^~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1603 ms 15456 KB Output is correct
2 Correct 1609 ms 15320 KB Output is correct
3 Correct 1608 ms 15436 KB Output is correct
4 Correct 1615 ms 15440 KB Output is correct
5 Correct 1612 ms 15460 KB Output is correct
6 Correct 1605 ms 15472 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 380 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 1603 ms 15456 KB Output is correct
2 Correct 1609 ms 15320 KB Output is correct
3 Correct 1608 ms 15436 KB Output is correct
4 Correct 1615 ms 15440 KB Output is correct
5 Correct 1612 ms 15460 KB Output is correct
6 Correct 1605 ms 15472 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 380 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 1628 ms 13684 KB Output is correct
14 Correct 1618 ms 13696 KB Output is correct
15 Correct 1614 ms 13192 KB Output is correct
16 Correct 1618 ms 13460 KB Output is correct
17 Correct 1817 ms 15368 KB Output is correct
18 Correct 1793 ms 15208 KB Output is correct
19 Correct 1812 ms 15372 KB Output is correct
20 Correct 1811 ms 15132 KB Output is correct
21 Correct 1815 ms 14752 KB Output is correct
22 Correct 1799 ms 14576 KB Output is correct
23 Correct 1811 ms 14648 KB Output is correct
24 Correct 1808 ms 14656 KB Output is correct
25 Correct 1629 ms 14508 KB Output is correct
26 Correct 1615 ms 13812 KB Output is correct
27 Correct 1817 ms 14084 KB Output is correct
28 Correct 1837 ms 13880 KB Output is correct
29 Correct 1847 ms 15804 KB Output is correct
30 Correct 1826 ms 14256 KB Output is correct
31 Correct 1831 ms 14172 KB Output is correct
32 Correct 1608 ms 13700 KB Output is correct
33 Correct 2 ms 376 KB Output is correct