Submission #858343

#	Time	Username	Problem	Language	Result	Execution time	Memory
858343		onepunchac168	Wiring (IOI17_wiring)	C++14	100 / 100	50 ms	11240 KiB

wiring

//------------------------------------\\
//   ------------------------------   \\
//  |  created by Dinh Manh Hung   |  \\
//  |      tht.onepunchac168       |  \\
//  |     THPT CHUYEN HA TINH      |  \\
//  |      HA TINH, VIET NAM       |  \\
//  |           Siuuu              |  \\
//   ------------------------------   \\
//------------------------------------\\

#include "wiring.h"
#include <bits/stdc++.h>
using namespace std;

#define            task     ""
#define       file(name)    if (fopen(name".inp", "r")) { freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); }
#define             ldb     long double
#define              pb     push_back
#define              eb     emplace_back
#define              fi     first
#define              se     second
#define           all(x)    begin(x),end(x)
#define       uniquev(v)    v.resize(unique(all(v))-v.begin())
#define       rep(i,a,b)    for (int i=a;i<=b;i++)
#define        cntbit(v)    __builtin_popcountll(v)
#define         gcd(a,b)    __gcd(a,b)
#define         lcm(a,b)    ((1LL*a*b)/__gcd(a,b))
#define          mask(x)    (1LL<<(x))
#define     readbit(x,i)    ((x>>i)&1)
#define             Yes     cout << "Yes"
#define             YES     cout << "YES"
#define              No     cout << "No"
#define              NO     cout << "NO"

typedef long long ll;
typedef pair <ll,ll> ii;
typedef pair <ll,ii> iii;
typedef pair <ii,ii> iiii;

ll dx[]= {1,-1,0,0,1,-1,1,-1};
ll dy[]= {0,0,-1,1,1,-1,-1,1};

const ldb PI = acos (-1);
//const ll mod=978846151;
//const ll base=29;
const ll mod=1e9+7;
const char nl = '\n';

inline int ReadInt()
{
    char co;
    for (co = getchar(); co < '0' || co > '9'; co = getchar());
    int xo = co - '0';
    for (co = getchar(); co >= '0' && co <= '9'; co = getchar())
        xo = (xo<<1) + (xo<<3) + co - '0';
    return xo;
}

void WriteInt(int xo)
{
    if (xo > 9)
        WriteInt(xo / 10);
    putchar(xo % 10 + '0');
}

// DEBUG
/*
void __print(int x) {cerr << x;}
void __print(long x) {cerr << x;}
void __print(long long x) {cerr << x;}
void __print(unsigned x) {cerr << x;}
void __print(unsigned long x) {cerr << x;}
void __print(unsigned long long x) {cerr << x;}
void __print(float x) {cerr << x;}
void __print(double x) {cerr << x;}
void __print(long double x) {cerr << x;}
void __print(char x) {cerr << '\'' << x << '\'';}
void __print(const char *x) {cerr << '\"' << x << '\"';}
void __print(const string &x) {cerr << '\"' << x << '\"';}
void __print(bool x) {cerr << (x ? "true" : "false");}

template<typename T, typename V>
void __print(const pair<T, V> &x) {cerr << '{'; __print(x.first); cerr << ','; __print(x.second); cerr << '}';}
template<typename T>
void __print(const T &x) {int f = 0; cerr << '{'; for (auto &i: x) cerr << (f++ ? "," : ""), __print(i); cerr << "}";}
void _print() {cerr << "]\n";}
template <typename T, typename... V>
void _print(T t, V... v) {__print(t); if (sizeof...(v)) cerr << ", "; _print(v...);}


#ifndef ONLINE_JUDGE
#define debug(x...) cerr << "[" << #x << "] = ["; _print(x)
#else
#define debug(x...)
#endif
*/

/* END OF TEMPLATE*/

// ================= Solution =================//

/*
void onepunchac168();

signed main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    file(task);
    int tests;
    tests=1;
    //cin>>tests;
    while (tests--)
    {
        onepunchac168();
    }
}

const int N=2e5+5;

void onepunchac168()
{

}
// goodbye see ya

*/

const int N=2e5+5;
vector <ii> vt;
ll sum[N];
ll dp[N];
int n;
long long min_total_length(std::vector<int> r, std::vector<int> b) {
    for (auto v:r)
    {
        vt.pb({v,0});
    }
    for (auto v:b)
    {
        vt.pb({v,1});
    }
    vt.pb({-1e18-5,0});
    n=vt.size()-1;
    sort (vt.begin(),vt.end());
    ll dem=0;
    for (int i=1;i<=n;i++)
    {
        sum[i]=sum[i-1]+vt[i].fi;
    }
    for (int i=1;i<=n;i++)
    {
        dp[i]=1e18+5;
    }
    dp[0]=0;
    for (int i=1;i<=n;i++)
    {
        dem++;
        if (i==n||vt[i].se!=vt[i+1].se)
        {
            ll left=i-dem+1;
            if (left==1)
            {

            }
            else
            {
                int l1,r1;
                r1=left-1;
                l1=r1;
                for (int j=r1-1;j>=1;j--)
                {
                    if (vt[j].se==vt[r1].se)
                    {
                        l1=j;
                        continue;
                    }
                    break;
                }
                int pos=l1;
                ll gmin=dp[l1-1];
                for (int j=i;j>=left;j--)
                {
                    while (pos <= r1 && r1-pos+1>j-left+1)
                    {
                        gmin=min(gmin+vt[left].fi-vt[pos].fi,dp[pos]);
                        pos++;
                    }
                    if (j-left+1<=r1-l1+1)
                    {
                        ll cost=sum[j]-sum[left-1]-(sum[left-1]-sum[2*left-j-2]);
                        dp[j]=min(dp[j],gmin+cost);
                    }
                }
                pos=r1;
                gmin=dp[r1];
                for (int j=left;j<=i;j++)
                {
                    while (pos>=l1&&r1-pos+1<j-left+1)
                    {
                        gmin=min(gmin,dp[pos-1]+sum[left+r1-pos]-sum[left-1]-(sum[r1]-sum[pos-1]));
                        pos--;
                    }
                    gmin+=vt[j].fi-vt[r1].fi;
                    dp[j]=min(dp[j],gmin);
                }
            }
            dem=0;
        }
    }
    return dp[n];
}

Compilation message (stderr)

wiring.cpp:1:1: warning: multi-line comment [-Wcomment]
    1 | //------------------------------------\\
      | ^

• Subtask 1: 7 / 7
• Subtask 2: 13 / 13
• Subtask 3: 10 / 10
• Subtask 4: 25 / 25
• Subtask 5: 45 / 45