oj.uz

Submission #1031939

# Submission time Handle Problem Language Result Execution time Memory
1031939 2024-07-23T08:50:37 Z _8_8_ Palembang Bridges (APIO15_bridge) C++17
31 / 100
 2000 ms 8400 KB 
#include <bits/stdc++.h>
 
using namespace std;
    
typedef long long ll;
const int  N = 3e5 + 21, MOD = (int)1e9+7;

#define int ll
int n,k;
ll res = 0;
array<int,2> a[N];
ll L[N],R[N];
vector<pair<int,int>> sc;
void prec(){
    for(int i = 1;i <= n;i++){
        sc.push_back({a[i][0],0});
        sc.push_back({a[i][1],1});
    }
    sort(sc.begin(),sc.end());
    ll sum = 0,col = 0;
    for(int i = 0;i < (int)sc.size();i++){
        L[i] = (sc[i].first * 1ll * col) - sum;
        if(sc[i].second == 1){
            col++;
            sum += sc[i].first;
        }
    }
    col = sum =0 ;
    for(int i = (int)sc.size() - 1;i >= 0;i--){
        R[i] = sum - (sc[i].first * 1ll * col);
        if(sc[i].second == 0){
            col++;
            sum += sc[i].first;
        }
    }
}
ll solve(){
    if(!n) return 0;
    ll res = 1e18;
    for(int i = 0;i < (int)sc.size();i++){
        res = min(res,2*(L[i] + R[i]));
    }
    return res;
}
ll calc(int l,int r){
    ll sum = 0;
    for(int i = 1;i <= n;i++){
        if(a[i][0] > l && a[i][1] < r){
            sum += min(2ll*(a[i][0] - l),2*1ll*(r - a[i][1]));
        }
    }
    return sum;
}
void test() {
    cin >> k >> n;
    int _i = 0;
    for(int i = 1;i <= n;i++) {
        char x,y;
        int l,r;
        cin >> x >> l >> y >> r;
        if(l > r){
            swap(l,r);
            swap(x,y);
        }
        res += (r - l);
        if(x == y){
            continue;
        }
        res++;
        a[++_i] = {l,r};
    }
    n = _i;
    prec();
    if(k == 1){
        cout << res + solve();
        return;
    }
    if(n == 0){
        cout << res;
        return;
    }
    ll cur = 1e18,d = 1e18;
    int j = -1;
    for(int i = 0;i < (int)sc.size();i++){
        cur = 1e18;
        j = i - 1;
        while(j + 1 < (int)sc.size()){
            ll val = L[i] * 2ll + R[j + 1] * 2ll + calc(sc[i].first,sc[j + 1].first);
            cur = min(cur,val);
            j++;
            // if(val <cur){
            //     j++;
            //     cur = val;
            // }else break;
        }
        // cout << sc[i].first << ' ' << sc[j].first <<  ' ' << cur << '\n';
        d = min(d,cur);
    }
    cout << res + d << '\n';
}
signed main() {
    ios_base::sync_with_stdio(false);cin.tie(0);
    int t = 1; 
    // cin >> t;
    while(t--) {
        test();
    }
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 22 ms 8384 KB Output is correct
13 Correct 35 ms 8232 KB Output is correct
14 Correct 27 ms 7400 KB Output is correct
15 Correct 19 ms 5176 KB Output is correct
16 Correct 20 ms 8400 KB Output is correct
17 Correct 26 ms 8380 KB Output is correct
18 Correct 26 ms 8388 KB Output is correct
19 Correct 32 ms 8176 KB Output is correct
20 Correct 32 ms 8384 KB Output is correct
21 Correct 31 ms 8388 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 344 KB Output is correct
4 Correct 2 ms 348 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 2 ms 348 KB Output is correct
8 Correct 2 ms 348 KB Output is correct
9 Correct 2 ms 484 KB Output is correct
10 Correct 2 ms 348 KB Output is correct
11 Correct 2 ms 348 KB Output is correct
12 Correct 2 ms 488 KB Output is correct

Subtask #4
0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 2 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 2 ms 348 KB Output is correct
8 Correct 2 ms 348 KB Output is correct
9 Correct 2 ms 348 KB Output is correct
10 Correct 2 ms 348 KB Output is correct
11 Correct 2 ms 348 KB Output is correct
12 Correct 3 ms 348 KB Output is correct
13 Correct 1653 ms 580 KB Output is correct
14 Correct 1815 ms 576 KB Output is correct
15 Correct 1750 ms 604 KB Output is correct
16 Correct 49 ms 344 KB Output is correct
17 Correct 267 ms 344 KB Output is correct
18 Correct 89 ms 348 KB Output is correct
19 Correct 1342 ms 600 KB Output is correct
20 Correct 1649 ms 604 KB Output is correct
21 Correct 1583 ms 604 KB Output is correct
22 Execution timed out 2041 ms 860 KB Time limit exceeded
23 Halted 0 ms 0 KB -

Subtask #5
0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 484 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 488 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 2 ms 348 KB Output is correct
8 Correct 2 ms 348 KB Output is correct
9 Correct 4 ms 348 KB Output is correct
10 Correct 2 ms 348 KB Output is correct
11 Correct 2 ms 348 KB Output is correct
12 Correct 2 ms 348 KB Output is correct
13 Correct 1717 ms 576 KB Output is correct
14 Execution timed out 2035 ms 580 KB Time limit exceeded
15 Halted 0 ms 0 KB -