oj.uz

Submission #153464

# Submission time Handle Problem Language Result Execution time Memory
153464 2019-09-14T08:30:41 Z leatherman Hedgehog Daniyar and Algorithms (IZhO19_sortbooks) C++14
0 / 100
 3000 ms 109316 KB 
#include <bits/stdc++.h>

#pragma GCC optimize("-O3")
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")

#define ll int
#define fi first
#define se second
#define all(x) x.begin(),x.end()
#define sqr(x) (x)*(x)
#define PB push_back

using namespace std;
typedef long double ld;
const ll MOD = 1e9 + 7;
const ll N = 1e6 + 200;
mt19937_64 rnd(chrono::system_clock::now().time_since_epoch().count());
vector<pair<ll, ll> > v;
vector<ll> of[N],q[N],pisos
;
pair<ll, ll> b[N];
ll ans[N],t[4 * N],a[N],l,r,x,k,limit,n,Q;
void upd(ll v,ll tl,ll tr,ll pos,ll val)
{
    if(tl == tr)
    {
        t[v] = max(t[v], val);
        return;
    }
    ll tm = (tl + tr) / 2;
    if(pos <= tm) upd(2 * v, tl, tm, pos, val);
    else upd(2 * v + 1, tm + 1, tr, pos, val);
    t[v] = max(t[2 * v], t[2 * v + 1]);
}
ll get(ll v,ll tl,ll tr,ll l,ll r)
{
    if(l > r) return 0;
    if(tl == l && tr == r) return t[v];
    ll tm = (tl + tr) / 2;
    return max(get(2 * v, tl, tm, l, min(r, tm)), get(2 * v + 1, tm + 1, tr, max(l, tm + 1), r));
}
int main()
{
    ios_base::sync_with_stdio();cin.tie(0);cout.tie(0);
    cin>>n>>Q;
    for(int i = 1; i <= n; i++) cin>>a[i];
    for(int i = n; i >= 1; i--)
    {
        x  = a[i];
        while(!v.empty() && x > v.back().fi)
        {
            of[i].PB(v.back().se);
            v.pop_back();
        }
        v.PB({x, i});
    }
    for(int i = 1; i <= Q; i++)
    {
        cin>>l>>r>>k;
        b[i] = {r, k};
        q[l].PB(i);
        pisos.PB(l);
    }
    limit = n;
    sort(all(pisos));
    pisos.erase(unique(all(pisos)), pisos.end());
    for(auto l : pisos)
        for(auto i : q[l])
    {
        r = b[i].fi;
        while(limit >= l)
        {
            for(auto j : of[limit]) upd(1, 1, n, j, a[j] + a[limit]);
            limit--;
        }
        x = get(1, 1, n, l, r);
        ans[i] = (x <= b[i].se);
    }
    for(int i = 1; i <= Q; i++) cout<<ans[i]<<endl;
    return 0;
}
/*
8 6
5 4 3 1 6 7 8 2
1 5 0
2 5 0
3 5 0
4 5 0
5 5 0
1 8 0
*/

Subtask #1
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 45 ms 47480 KB Output is correct
2 Correct 46 ms 47400 KB Output is correct
3 Incorrect 46 ms 47352 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 45 ms 47480 KB Output is correct
2 Correct 46 ms 47400 KB Output is correct
3 Incorrect 46 ms 47352 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #3
0 / 13.0

# Verdict Execution time Memory Grader output
1 Execution timed out 3031 ms 109316 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 17.0

# Verdict Execution time Memory Grader output
1 Incorrect 578 ms 54148 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 45 ms 47480 KB Output is correct
2 Correct 46 ms 47400 KB Output is correct
3 Incorrect 46 ms 47352 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 45 ms 47480 KB Output is correct
2 Correct 46 ms 47400 KB Output is correct
3 Incorrect 46 ms 47352 KB Output isn't correct
4 Halted 0 ms 0 KB -