oj.uz

Submission #530303

# Submission time Handle Problem Language Result Execution time Memory
530303 2022-02-25T03:04:24 Z Nghes Palembang Bridges (APIO15_bridge) C++14
100 / 100
 223 ms 15160 KB 
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
#define FOR(i,a,b) for(int i=(a);i<=(int)(b);++i)
#define FORB(i,a,b) for(int i=(a);i>=(int)(b);--i)
#define E '\n'
#define name "main"
#define X first
#define Y second
#define int ll
#define ii pair<int,int>

const ll oo = 1e18+19;
const int N = 1e5;
multiset<int> low;
multiset<int> up;
int numBrigde, numPeople;
int pre[N+13];
int suf[N+13];
int sameside;
int sumLow;
int sumUp;
vector<ii> people;
bool minimize(ll &x, ll y){
    return x > y ? x = y,1 : 0;
}
void ins(int x){
    if (low.size() && *low.rbegin() < x) up.insert(x),sumUp += x;
    else low.insert(x), sumLow += x;
    while(up.size() > low.size()){
        sumLow += *up.begin();
        sumUp -= *up.begin();
        low.insert(*up.begin());
        up.erase(up.find(*up.begin()));
    }
    while(low.size() - 1 > up.size()){
        sumLow -= *low.rbegin();
        sumUp += *low.rbegin();
        up.insert(*low.rbegin());
        low.erase(low.find(*low.rbegin()));
    }
}
int getMed(){
    return *low.rbegin();
}
void prepare(){
    low.clear(); up.clear();
    sumUp = sumLow = 0;
    FOR(i,0,people.size()-1){
        ins(people[i].X);
        ins(people[i].Y);
        pre[i] = sumUp - sumLow;
    }
    low.clear(); up.clear();
    sumUp = sumLow = 0;
    FORB(i,people.size()-1,0){
        ins(people[i].X);
        ins(people[i].Y);
        suf[i] = sumUp - sumLow;
    }
}
signed main()
{
    ios::sync_with_stdio(0); cin.tie(0); cout .tie(0);
//    freopen(name".inp","r",stdin); freopen(name".out","w",stdout);
    cin >> numBrigde >> numPeople;
    FOR(i,1,numPeople){
        char Ax,By;
        int x,y;
        cin >> Ax >> x >> By >> y;
        if (Ax == By)
            sameside += abs(x - y);
        else
            people.push_back(ii(x,y));
    }
    sort(people.begin(),people.end(),[&](ii A,ii B){
        return (A.X + A.Y) < (B.X + B.Y);
    });
    prepare();



    ll res = pre[people.size()-1];
    if (numBrigde == 2){
        FOR(i,1,people.size()-1){
            minimize(res,suf[i] + pre[i-1]);
        }
    }
    cout << res + sameside + people.size();

    return 0;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 2 ms 332 KB Output is correct
6 Correct 2 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 2 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 2 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 2 ms 332 KB Output is correct
7 Correct 2 ms 332 KB Output is correct
8 Correct 2 ms 332 KB Output is correct
9 Correct 2 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 131 ms 12752 KB Output is correct
13 Correct 207 ms 12788 KB Output is correct
14 Correct 201 ms 11460 KB Output is correct
15 Correct 105 ms 7616 KB Output is correct
16 Correct 113 ms 12744 KB Output is correct
17 Correct 133 ms 12712 KB Output is correct
18 Correct 111 ms 12712 KB Output is correct
19 Correct 149 ms 12784 KB Output is correct
20 Correct 139 ms 12764 KB Output is correct
21 Correct 138 ms 12792 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 0 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 1 ms 324 KB Output is correct
12 Correct 0 ms 332 KB Output is correct

Subtask #4
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 316 KB Output is correct
4 Correct 1 ms 320 KB Output is correct
5 Correct 1 ms 324 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 2 ms 460 KB Output is correct
14 Correct 1 ms 460 KB Output is correct
15 Correct 1 ms 460 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 1 ms 460 KB Output is correct
20 Correct 1 ms 460 KB Output is correct
21 Correct 1 ms 460 KB Output is correct
22 Correct 1 ms 460 KB Output is correct
23 Correct 2 ms 460 KB Output is correct
24 Correct 1 ms 460 KB Output is correct

Subtask #5
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 320 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 1 ms 320 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 2 ms 460 KB Output is correct
14 Correct 1 ms 460 KB Output is correct
15 Correct 2 ms 460 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 2 ms 460 KB Output is correct
20 Correct 1 ms 460 KB Output is correct
21 Correct 1 ms 460 KB Output is correct
22 Correct 1 ms 460 KB Output is correct
23 Correct 1 ms 460 KB Output is correct
24 Correct 1 ms 352 KB Output is correct
25 Correct 131 ms 13612 KB Output is correct
26 Correct 192 ms 13764 KB Output is correct
27 Correct 209 ms 14512 KB Output is correct
28 Correct 223 ms 15096 KB Output is correct
29 Correct 218 ms 15160 KB Output is correct
30 Correct 85 ms 8096 KB Output is correct
31 Correct 129 ms 14504 KB Output is correct
32 Correct 134 ms 15084 KB Output is correct
33 Correct 110 ms 14708 KB Output is correct
34 Correct 142 ms 15160 KB Output is correct
35 Correct 141 ms 14648 KB Output is correct
36 Correct 136 ms 14876 KB Output is correct
37 Correct 136 ms 13580 KB Output is correct