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Submission #171234

# Submission time Handle Problem Language Result Execution time Memory
171234 2019-12-27T20:58:03 Z VEGAnn Palembang Bridges (APIO15_bridge) C++14
100 / 100
 405 ms 14504 KB 
#include <bits/stdc++.h>
#define sz(x) ((int)x.size())
#define all(x) x.begin(),x.end()
#define PB push_back
#define MP make_pair
#define ft first
#define sd second
#define pii pair<int,int>
using namespace std;
typedef long long ll;
const ll OO = 1e18;
ll best = OO, extra = 0;
vector<ll> fi, se;
vector<pii> seg;
multiset<int> big, sml;
int k, n;

void solve(vector<ll> &vc){
    vc[0] = 0;
    ll sum_big = 0ll;
    ll sum_sml = 0ll;
    big.clear();
    sml.clear();

    int mid = 0;
    for (int i = 0; i < sz(seg); i++) {
        if (seg[i].ft <= mid && seg[i].sd >= mid){
            big.insert(seg[i].sd);
            sml.insert(seg[i].ft);
            sum_big += seg[i].sd;
            sum_sml += seg[i].ft;
        } else if (seg[i].sd < mid){
            sml.insert(seg[i].sd);
            sml.insert(seg[i].ft);
            sum_sml += seg[i].ft;
            sum_sml += seg[i].sd;
            ll cur = *(--sml.end());
            sum_big += cur;
            sum_sml -= cur;
            sml.erase(--sml.end());
            big.insert(cur);
        } else {
            big.insert(seg[i].sd);
            big.insert(seg[i].ft);
            sum_big += seg[i].ft;
            sum_big += seg[i].sd;
            ll cur = *(big.begin());
            sum_sml += cur;
            sum_big -= cur;
            big.erase(big.begin());
            sml.insert(cur);
        }
        vc[i + 1] = sum_big - sum_sml;
        mid = (*big.begin());
    }
}

bool cmp(pii x, pii y){
    return (x.ft + x.sd) < (y.ft + y.sd);
}

int main(){
    ios_base::sync_with_stdio(0); cin.tie(0);
    cin >> k >> n;
    for (int i = 0; i < n; i++){
        char c1, c2; int x, y;
        cin >> c1 >> x >> c2 >> y;
        if (c1 == c2){
            extra += abs(x - y);
        } else {
            extra++;
            if (x > y) swap(x, y);
            seg.PB(MP(x, y));
        }
    }
    sort(all(seg), cmp);
    fi.resize(sz(seg) + 1);
    se.resize(sz(seg) + 1);
    solve(fi);
    reverse(all(seg));
    solve(se);
    reverse(all(se));
    int bd = (k == 1 ? 1 : sz(fi));
    for (int i = 0; i < bd; i++)
        best = min(best, fi[i] + se[i]);
    if (best == OO)
        best = 0;
    cout << extra + best;
    return 0;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 3 ms 504 KB Output is correct
4 Correct 3 ms 504 KB Output is correct
5 Correct 3 ms 504 KB Output is correct
6 Correct 3 ms 504 KB Output is correct
7 Correct 3 ms 504 KB Output is correct
8 Correct 3 ms 376 KB Output is correct
9 Correct 3 ms 376 KB Output is correct
10 Correct 3 ms 504 KB Output is correct
11 Correct 3 ms 504 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 380 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 3 ms 376 KB Output is correct
4 Correct 3 ms 376 KB Output is correct
5 Correct 4 ms 504 KB Output is correct
6 Correct 3 ms 376 KB Output is correct
7 Correct 3 ms 376 KB Output is correct
8 Correct 3 ms 376 KB Output is correct
9 Correct 3 ms 384 KB Output is correct
10 Correct 3 ms 504 KB Output is correct
11 Correct 3 ms 504 KB Output is correct
12 Correct 159 ms 12060 KB Output is correct
13 Correct 370 ms 12124 KB Output is correct
14 Correct 285 ms 10992 KB Output is correct
15 Correct 167 ms 7284 KB Output is correct
16 Correct 160 ms 12140 KB Output is correct
17 Correct 196 ms 12240 KB Output is correct
18 Correct 124 ms 12012 KB Output is correct
19 Correct 197 ms 12144 KB Output is correct
20 Correct 185 ms 12288 KB Output is correct
21 Correct 196 ms 12148 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct

Subtask #4
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 504 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 3 ms 504 KB Output is correct
14 Correct 3 ms 636 KB Output is correct
15 Correct 3 ms 504 KB Output is correct
16 Correct 2 ms 376 KB Output is correct
17 Correct 3 ms 376 KB Output is correct
18 Correct 3 ms 376 KB Output is correct
19 Correct 3 ms 504 KB Output is correct
20 Correct 3 ms 504 KB Output is correct
21 Correct 3 ms 504 KB Output is correct
22 Correct 3 ms 504 KB Output is correct
23 Correct 3 ms 504 KB Output is correct
24 Correct 3 ms 508 KB Output is correct

Subtask #5
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 256 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 504 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 3 ms 504 KB Output is correct
14 Correct 3 ms 388 KB Output is correct
15 Correct 4 ms 504 KB Output is correct
16 Correct 3 ms 452 KB Output is correct
17 Correct 3 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 3 ms 504 KB Output is correct
20 Correct 3 ms 504 KB Output is correct
21 Correct 3 ms 504 KB Output is correct
22 Correct 3 ms 504 KB Output is correct
23 Correct 3 ms 504 KB Output is correct
24 Correct 3 ms 504 KB Output is correct
25 Correct 162 ms 13036 KB Output is correct
26 Correct 267 ms 13088 KB Output is correct
27 Correct 405 ms 14116 KB Output is correct
28 Correct 361 ms 14420 KB Output is correct
29 Correct 351 ms 14504 KB Output is correct
30 Correct 169 ms 7924 KB Output is correct
31 Correct 171 ms 13736 KB Output is correct
32 Correct 206 ms 14448 KB Output is correct
33 Correct 136 ms 14064 KB Output is correct
34 Correct 202 ms 14404 KB Output is correct
35 Correct 187 ms 14160 KB Output is correct
36 Correct 201 ms 14324 KB Output is correct
37 Correct 157 ms 13164 KB Output is correct