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Submission #602998

# Submission time Handle Problem Language Result Execution time Memory
602998 2022-07-23T14:02:50 Z BT21tata Palembang Bridges (APIO15_bridge) C++17
63 / 100
 936 ms 4384 KB 
#include<bits/stdc++.h>
// #include <ext/pb_ds/assoc_container.hpp>
// using namespace __gnu_pbds;
// #pragma GCC target ("avx,avx2,fma")
// #pragma GCC optimize("Ofast")
// #pragma GCC optimize("unroll-loops")
typedef long long ll;
typedef long double ld;
typedef unsigned long long ull;
#define SPEED ios_base::sync_with_stdio(false); cin.tie(0), cout.tie(0)
#define rall(v) (v).rbegin(),(v).rend()
#define all(v) (v).begin(),(v).end()
#define setp fixed<<setprecision
#define OK cerr<<"OK"<<endl<<flush
#define pii pair<int, int>
#define pll pair<ll, ll>
#define pb push_back
#define F first
#define S second
#define y0 jahdakdh
#define y1 jahsadakdakdh
#define endl '\n'
const ll MOD=1e9+7;
const ll mod=(1ll<<31)-1;
const ld eps=1e-8;
using namespace std;
mt19937 rng(std::chrono::system_clock::now().time_since_epoch().count());
 
int n, k;
ll ans=MOD*MOD, fx;
vector<pll> v;
vector<ll> pos;
 
ll ternary(ll br1, ll br2)
{
    ll cnt=0;
    for(pll u : v)
        cnt+=min(abs(u.F-br1)+abs(u.S-br1)+1, abs(u.F-br2)+abs(u.S-br2)+1);
    return cnt+fx;
}
 
void solve1()
{
    int l=0, r=pos.size()-1;
    while(l<=r)
    {
        int mid1=l+(r-l)/3;
        int mid2=r-(r-l)/3;
        ll ans1=ternary(pos[mid1], pos[mid1]);
        ll ans2=ternary(pos[mid2], pos[mid2]);
        ans=min({ans, ans1, ans2});
        if(ans1==ans2)
        {
            l=mid1+1;
            r=mid2-1;
        }
        else if(ans1<ans2) r=mid2-1;
        else l=mid1+1;
    }
    cout<<ans;
}
 
ll ter(ll br1)
{
    int l=br1+1, r=pos.size()-1;
    ll cnt=MOD*MOD;
    while(l<=r)
    {
        int mid1=l+(r-l)/3;
        int mid2=r-(r-l)/3;
        ll cnt1=ternary(pos[br1], pos[mid1]);
        ll cnt2=ternary(pos[br1], pos[mid2]);
        cnt=min({cnt, cnt1, cnt2});
        if(cnt1==cnt2)
        {
            l=mid1+1;
            r=mid2-1;
        }
        else if(cnt1<cnt2) r=mid2-1;
        else l=mid1+1;
    }
    return cnt;
}
 
void solve2()
{   
    int l=0, r=pos.size()-2;
    while(l<=r)
    {
        int mid1=l+(r-l)/3;
        int mid2=r-(r-l)/3;
        ll ans1=ter(mid1);
        ll ans2=ter(mid2);
        ans=min({ans, ans1, ans2});
        if(ans1==ans2)
        {
            l=mid1+1;
            r=mid2-1;
        }
        else if(ans1<ans2) r=mid2-1;
        else l=mid1+1;
    }
 
    cout<<ans;
}
 
int main()
{
    SPEED;
    cin>>k>>n;
    for(int i=0; i<n; i++)
    {
        char a, b;
        ll x, y;
        cin>>a>>x>>b>>y;
        pos.pb(x);
        pos.pb(y);
        if(a==b) fx+=abs(y-x);
        else v.pb({x, y});
    }
    sort(all(pos));
 
    if(k==1) solve1();
    else solve2();
    return 0;
}
/*
2 5
B 0 A 4
B 1 B 3
A 5 B 7
B 2 A 6
B 1 A 7
*/

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 328 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 372 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 388 KB Output is correct
10 Correct 1 ms 368 KB Output is correct
11 Correct 1 ms 340 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 27 ms 4016 KB Output is correct
13 Correct 57 ms 4076 KB Output is correct
14 Correct 42 ms 3908 KB Output is correct
15 Correct 33 ms 2724 KB Output is correct
16 Correct 35 ms 3988 KB Output is correct
17 Correct 45 ms 4048 KB Output is correct
18 Correct 40 ms 3972 KB Output is correct
19 Correct 56 ms 4032 KB Output is correct
20 Correct 36 ms 3976 KB Output is correct
21 Correct 51 ms 4036 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 328 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 320 KB Output is correct
4 Correct 1 ms 324 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 320 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 324 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct

Subtask #4
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 328 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 324 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 324 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 2 ms 340 KB Output is correct
15 Correct 4 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 2 ms 340 KB Output is correct
18 Correct 2 ms 340 KB Output is correct
19 Correct 1 ms 464 KB Output is correct
20 Correct 4 ms 340 KB Output is correct
21 Correct 2 ms 340 KB Output is correct
22 Correct 4 ms 404 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 4 ms 340 KB Output is correct

Subtask #5
0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 324 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 2 ms 340 KB Output is correct
15 Correct 4 ms 336 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 2 ms 352 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 4 ms 340 KB Output is correct
21 Correct 3 ms 340 KB Output is correct
22 Correct 5 ms 340 KB Output is correct
23 Correct 2 ms 340 KB Output is correct
24 Correct 3 ms 340 KB Output is correct
25 Correct 172 ms 4364 KB Output is correct
26 Correct 389 ms 4312 KB Output is correct
27 Correct 870 ms 4304 KB Output is correct
28 Correct 900 ms 4308 KB Output is correct
29 Correct 926 ms 4384 KB Output is correct
30 Correct 441 ms 2808 KB Output is correct
31 Correct 179 ms 4304 KB Output is correct
32 Correct 936 ms 4308 KB Output is correct
33 Correct 400 ms 4336 KB Output is correct
34 Correct 933 ms 4316 KB Output is correct
35 Correct 188 ms 4312 KB Output is correct
36 Correct 934 ms 4304 KB Output is correct
37 Incorrect 173 ms 4284 KB Output isn't correct
38 Halted 0 ms 0 KB -