oj.uz

Submission #382636

# Submission time Handle Problem Language Result Execution time Memory
382636 2021-03-28T00:26:49 Z jainbot27 Snowball (JOI21_ho_t2) C++17
100 / 100
 132 ms 19524 KB 
#include <bits/stdc++.h>
using namespace std;

using ll = long long;

#define F0R(i, n) for(int i=0; i<n; i++)
#define FOR(i, a, b) for(int i=a; i<b; i++)
#define ROF(i, a, b) for(int i=b-1; i>=a; i--)
#define siz(x) (int) x.size()
#define f first 
#define s second

const int mxN = 2e5+10;
const ll infLL = 1e18+10;

int n, q;
ll x[mxN];
ll w[mxN];
ll ans[mxN];
ll dl[mxN], dr[mxN];
pair<ll, int> sl[mxN], sr[mxN];

int main(){
    ios_base::sync_with_stdio(0); cin.tie(0);
    cin >> n >> q;
    F0R(i, n) cin >> x[i];
    F0R(i, q) cin >> w[i];
    // we will first solve for prefixs and then suffixs
    ll mn = 0, mx = 0;
    ll pos = 0;
    //F0R(i, q){
    //    pos += w[i];
    //    mn = min(mn, pos);
    //    mx = max(mx, pos);
    //}
    // find min and max
    //F0R(i, n) ans[i] += mn+mx;
    // init 
    dl[0] = infLL;
    FOR(i, 1, n) dl[i] = x[i]-x[i-1];
    dr[n-1] = infLL;
    F0R(i, n-1) dr[i] = x[i+1]-x[i];
    F0R(i, n) sl[i] = {dl[i], i}, sr[i] = {dr[i], i};
    sort(sl, sl+n); sort(sr, sr+n);
    //mn = 0, mx = 0, pos = 0;
    int pl = 0, pr = 0;
    F0R(i, q){
        pos += w[i];
        while(pl<n&&sl[pl].f<=mx-pos){
            ans[sl[pl].s] += max(-mn, sl[pl].f-mx);
            pl++;
        }
        while(pr<n&&sr[pr].f<=pos-mn){
            ans[sr[pr].s] += max(mx, sr[pr].f+mn);
            pr++;
        }
        mn = min(mn, pos);
        mx = max(mx, pos);
    }
    while(pl<n){
        ans[sl[pl].s] += -mn;
        pl++;
    }
    while(pr<n){
        ans[sr[pr].s] += mx;
        pr++;
    }
    F0R(i, n){
        cout << ans[i] << "\n";
    }
}

Subtask #1
33.0 / 33.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 2 ms 492 KB Output is correct
4 Correct 2 ms 620 KB Output is correct
5 Correct 2 ms 620 KB Output is correct
6 Correct 2 ms 620 KB Output is correct
7 Correct 2 ms 620 KB Output is correct
8 Correct 3 ms 620 KB Output is correct
9 Correct 2 ms 620 KB Output is correct
10 Correct 2 ms 620 KB Output is correct
11 Correct 2 ms 620 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 2 ms 620 KB Output is correct
16 Correct 2 ms 620 KB Output is correct
17 Correct 2 ms 620 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 2 ms 620 KB Output is correct

Subtask #2
67.0 / 67.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 2 ms 492 KB Output is correct
4 Correct 2 ms 620 KB Output is correct
5 Correct 2 ms 620 KB Output is correct
6 Correct 2 ms 620 KB Output is correct
7 Correct 2 ms 620 KB Output is correct
8 Correct 3 ms 620 KB Output is correct
9 Correct 2 ms 620 KB Output is correct
10 Correct 2 ms 620 KB Output is correct
11 Correct 2 ms 620 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 2 ms 620 KB Output is correct
16 Correct 2 ms 620 KB Output is correct
17 Correct 2 ms 620 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 2 ms 620 KB Output is correct
20 Correct 35 ms 4108 KB Output is correct
21 Correct 29 ms 3948 KB Output is correct
22 Correct 32 ms 3620 KB Output is correct
23 Correct 27 ms 3692 KB Output is correct
24 Correct 33 ms 4972 KB Output is correct
25 Correct 118 ms 19420 KB Output is correct
26 Correct 115 ms 19308 KB Output is correct
27 Correct 113 ms 19180 KB Output is correct
28 Correct 117 ms 19200 KB Output is correct
29 Correct 118 ms 18964 KB Output is correct
30 Correct 116 ms 18668 KB Output is correct
31 Correct 110 ms 17772 KB Output is correct
32 Correct 85 ms 18024 KB Output is correct
33 Correct 14 ms 2460 KB Output is correct
34 Correct 117 ms 19380 KB Output is correct
35 Correct 116 ms 19308 KB Output is correct
36 Correct 118 ms 19436 KB Output is correct
37 Correct 124 ms 19180 KB Output is correct
38 Correct 118 ms 19308 KB Output is correct
39 Correct 124 ms 19180 KB Output is correct
40 Correct 120 ms 19308 KB Output is correct
41 Correct 32 ms 4716 KB Output is correct
42 Correct 105 ms 18028 KB Output is correct
43 Correct 117 ms 19308 KB Output is correct
44 Correct 35 ms 4588 KB Output is correct
45 Correct 117 ms 19232 KB Output is correct
46 Correct 108 ms 19524 KB Output is correct
47 Correct 132 ms 19436 KB Output is correct
48 Correct 109 ms 19436 KB Output is correct