oj.uz

Submission #840262

# Submission time Handle Problem Language Result Execution time Memory
840262 2023-08-31T08:55:06 Z Fysty Longest Trip (IOI23_longesttrip) C++17
15 / 100
 14 ms 704 KB 
#include <bits/stdc++.h>
#include <random>
#include <chrono>
using namespace std;
#pragma GCC optimize("Ofast")
#pragma GCC optimize ("unroll-loops")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
typedef long long ll;
typedef long double ld;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
typedef pair<double,double> pdd;
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());

template<typename T> void _do(T x){cerr<<x<<"\n";}
template<typename T,typename ...U> void _do(T x,U ...y){cerr<<x<<", ";_do(y...);}
#define dbg(...) cerr<<#__VA_ARGS__<<" = ";_do(__VA_ARGS__);

const int MOD1=1e9+7;
const int MOD2=998244353;
const ll INF=3e18;

ll fpow(ll a,ll b,ll m)
{
    if(!b) return 1;
    ll tmp=1;
    for(ll cur=a;b;b>>=1,cur=cur*cur%m) if(b&1) tmp=tmp*cur%m;
    return tmp;
}
ll inv(ll a,ll m) {return fpow(a,m-2,m);}

#define MottoHayaku ios::sync_with_stdio(false);cin.tie(0);
#define rep(i,n) for(int i=0;i<n;i++)
#define rep1(i,n) for(int i=1;i<=n;i++)
#define F first
#define S second
#define pb push_back
#define uni(c) c.resize(distance(c.begin(),unique(c.begin(),c.end())))
#define unisort(c) sort(c.begin(),c.end()),uni(c)

#include "longesttrip.h"

int has[300][300];
vector<int> ed[300];
bool vis[300];
int par[300];
int deg[300],cnt[300];
int n;


vector<int> longest_trip(int N,int D)
{
    n=N;
    rep(i,n)
    {
        rep(j,n)
        {
            has[i][j]=-1;
        }
        ed[i].clear();
        vis[i]=0;
        par[i]=-1;
        deg[i]=cnt[i]=0;
    }
    vector<int> ret;
    if(D==3)
    {
        rep(i,n) ret.pb(i);
        return ret;
    }
    vector<int> v1={0},v2;
    bool has=1;
    rep1(i,n-1)
    {
        if(are_connected({v1.back()},{i}))
        {
            v1.pb(i);
            has=1;
        }
        else if(has==0)
        {
            v2.pb(i);
        }
        else
        {
            if(v2.empty()||are_connected({v2.back()},{i}))
            {
                v2.pb(i);
                has=0;
            }
            else
            {
                reverse(v2.begin(),v2.end());
                for(int x:v2) v1.pb(x);
                v2={i};
                has=1;
            }
        }
    }
    if(v1.size()<v2.size()) swap(v1,v2);
    if(v2.empty()) return v1;
    if(!are_connected(v1,v2)) return v1;
    if(are_connected({v1[0]},{v2[0]}))
    {
        reverse(v2.begin(),v2.end());
        for(int x:v1) v2.pb(x);
        return v2;
    }
    if(are_connected({v1.back()},{v2[0]}))
    {
        for(int x:v2) v1.pb(x);
        return v1;
    }
    int l=0,r=(int)v1.size()-1;
    while(l<r)
    {
        int mid=l+r>>1;
        vector<int> tmp;
        rep(i,mid+1) tmp.pb(v1[i]);
        if(are_connected(tmp,{v2[0]})) r=mid;
        else l=mid+1;
    }
    reverse(v2.begin(),v2.end());
    for(int i=l;i<v1.size();i++) v2.pb(v1[i]);
    rep(i,l) v2.pb(v1[i]);
    return v2;
}

Compilation message

longesttrip.cpp: In function 'std::vector<int> longest_trip(int, int)':
longesttrip.cpp:117:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  117 |         int mid=l+r>>1;
      |                 ~^~
longesttrip.cpp:124:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  124 |     for(int i=l;i<v1.size();i++) v2.pb(v1[i]);
      |                 ~^~~~~~~~~~

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 2 ms 592 KB Output is correct

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 208 KB Output is correct
2 Correct 1 ms 208 KB Output is correct
3 Correct 1 ms 276 KB Output is correct
4 Correct 1 ms 464 KB Output is correct
5 Correct 1 ms 592 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 208 KB Output is correct
2 Correct 7 ms 208 KB Output is correct
3 Correct 9 ms 336 KB Output is correct
4 Correct 8 ms 336 KB Output is correct
5 Correct 7 ms 592 KB Output is correct
6 Correct 9 ms 208 KB Output is correct
7 Correct 9 ms 208 KB Output is correct
8 Correct 11 ms 336 KB Output is correct
9 Correct 9 ms 440 KB Output is correct
10 Correct 9 ms 592 KB Output is correct
11 Correct 7 ms 592 KB Output is correct
12 Correct 10 ms 592 KB Output is correct
13 Correct 8 ms 592 KB Output is correct

Subtask #3
0.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 208 KB Output is correct
2 Correct 9 ms 208 KB Output is correct
3 Correct 8 ms 336 KB Output is correct
4 Correct 10 ms 464 KB Output is correct
5 Correct 6 ms 592 KB Output is correct
6 Correct 7 ms 208 KB Output is correct
7 Correct 7 ms 208 KB Output is correct
8 Correct 6 ms 336 KB Output is correct
9 Correct 8 ms 336 KB Output is correct
10 Correct 7 ms 592 KB Output is correct
11 Correct 8 ms 564 KB Output is correct
12 Correct 7 ms 592 KB Output is correct
13 Correct 10 ms 620 KB Output is correct
14 Correct 10 ms 208 KB Output is correct
15 Correct 12 ms 208 KB Output is correct
16 Correct 12 ms 336 KB Output is correct
17 Correct 5 ms 336 KB Output is correct
18 Correct 10 ms 336 KB Output is correct
19 Correct 10 ms 420 KB Output is correct
20 Correct 13 ms 336 KB Output is correct
21 Correct 11 ms 592 KB Output is correct
22 Correct 11 ms 628 KB Output is correct
23 Correct 8 ms 624 KB Output is correct
24 Correct 11 ms 592 KB Output is correct
25 Correct 13 ms 208 KB Output is correct
26 Correct 10 ms 208 KB Output is correct
27 Correct 11 ms 208 KB Output is correct
28 Correct 10 ms 208 KB Output is correct
29 Correct 9 ms 208 KB Output is correct
30 Correct 7 ms 336 KB Output is correct
31 Correct 7 ms 336 KB Output is correct
32 Correct 12 ms 336 KB Output is correct
33 Correct 4 ms 336 KB Output is correct
34 Correct 6 ms 336 KB Output is correct
35 Correct 10 ms 336 KB Output is correct
36 Correct 9 ms 592 KB Output is correct
37 Correct 9 ms 624 KB Output is correct
38 Correct 10 ms 592 KB Output is correct
39 Correct 10 ms 592 KB Output is correct
40 Correct 6 ms 572 KB Output is correct
41 Correct 11 ms 704 KB Output is correct
42 Correct 9 ms 592 KB Output is correct
43 Correct 11 ms 592 KB Output is correct
44 Correct 7 ms 592 KB Output is correct
45 Correct 13 ms 208 KB Output is correct
46 Incorrect 0 ms 208 KB Incorrect
47 Halted 0 ms 0 KB -

Subtask #4
0.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 208 KB Output is correct
2 Correct 7 ms 208 KB Output is correct
3 Correct 8 ms 336 KB Output is correct
4 Correct 11 ms 464 KB Output is correct
5 Correct 11 ms 592 KB Output is correct
6 Correct 14 ms 208 KB Output is correct
7 Correct 8 ms 208 KB Output is correct
8 Correct 8 ms 336 KB Output is correct
9 Correct 7 ms 336 KB Output is correct
10 Correct 9 ms 592 KB Output is correct
11 Correct 9 ms 592 KB Output is correct
12 Correct 10 ms 592 KB Output is correct
13 Correct 8 ms 592 KB Output is correct
14 Correct 12 ms 208 KB Output is correct
15 Correct 8 ms 208 KB Output is correct
16 Correct 9 ms 336 KB Output is correct
17 Correct 12 ms 336 KB Output is correct
18 Correct 9 ms 336 KB Output is correct
19 Correct 9 ms 336 KB Output is correct
20 Correct 9 ms 440 KB Output is correct
21 Correct 11 ms 208 KB Output is correct
22 Correct 11 ms 208 KB Output is correct
23 Correct 10 ms 208 KB Output is correct
24 Correct 6 ms 208 KB Output is correct
25 Correct 8 ms 208 KB Output is correct
26 Correct 8 ms 336 KB Output is correct
27 Correct 12 ms 336 KB Output is correct
28 Correct 12 ms 336 KB Output is correct
29 Correct 9 ms 336 KB Output is correct
30 Correct 10 ms 336 KB Output is correct
31 Correct 9 ms 336 KB Output is correct
32 Correct 10 ms 208 KB Output is correct
33 Incorrect 1 ms 208 KB Incorrect
34 Halted 0 ms 0 KB -