Submission #569478

#	Time	Username	Problem	Language	Result	Execution time	Memory
569478		mat_v	Pinball (JOI14_pinball)	C++14	0 / 100	0 ms	340 KiB

pinball

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/rope>

#define ff(i,a,b) for(int (i) = (a); (i) <= (b); ++(i))
#define fb(i,a,b) for(int (i) = (a); (i) >= (b); --(i))
#define mod 998244353
#define xx first
#define yy second
#define all(a) (a).begin(), (a).end()
#define pb push_back
#define ll long long
#define pii pair<int,int>


using namespace std;
using namespace __gnu_pbds;
typedef tree<int, null_type, less<int>,rb_tree_tag, tree_order_statistics_node_update> ordered_set;/// find_by_order(x)(x+1th) , order_of_key() (strictly less)
mt19937 rnd(chrono::steady_clock::now().time_since_epoch().count());


int n,duz;
int br = 0;
map<int,int> poj;
ll INF=1e5;

struct prep{
    int l,r,x;
    ll w;
}niz[100005];

ll dp[100005];
ll sejv[100005];

ll seg[4*300005];

void update(int node, int l, int r, int poz, ll val){
    if(l == r){
        seg[node] = val;
        return;
    }
    int mid = (l + r) / 2;
    if(poz <= mid)update(node*2,l,mid,poz,val);
    else update(node*2+1,mid+1,r,poz,val);
    seg[node] = min(seg[node * 2 + 1], seg[node * 2]);
}
ll kveri(int node, int l, int r, int levo, int desno){
    if(levo > r || l > desno)return INF;
    if(l >= levo && r <= desno)return seg[node];
    int mid = (l + r) / 2;
    return min(kveri(node*2,l,mid,levo,desno), kveri(node*2+1,mid+1,r,levo,desno));

}

void radi(){
    update(1,1,duz,1,0);
    ff(i,2,duz)update(1,1,duz,i,INF);
    ff(i,1,n){
        dp[i] = kveri(1,1,duz,niz[i].l,niz[i].r) + niz[i].w;
        update(1,1,duz,niz[i].x,kveri(1,1,duz,niz[i].l,niz[i].r)+niz[i].w);

    }
}

int main()
{

    ios_base::sync_with_stdio(false); cin.tie(0);
    INF *= INF;
    cin >> n >> duz;
    vector<int> svi;
    ff(i,1,n){
        cin >> niz[i].l >> niz[i].r >> niz[i].x >> niz[i].w;
        svi.pb(niz[i].l);
        svi.pb(niz[i].r);
        svi.pb(niz[i].x);
    }
    svi.pb(duz);
    svi.pb(1);
    sort(svi.begin(),svi.end());
    int lst = 0;
    int br = 0;
    for(auto c:svi){
        if(c == lst)continue;
        br++;
        poj[c] = br;
        lst = c;
    }
    duz = poj[duz];
    ff(i,1,n)niz[i] = {poj[niz[i].l], poj[niz[i].r], poj[niz[i].x], niz[i].w};
    radi();
    ff(i,1,n)sejv[i] = dp[i];
    ff(i,1,n){
        niz[i].l = duz-niz[i].l+1;
        niz[i].r = duz-niz[i].r+1;
        niz[i].x = duz-niz[i].x+1;
        swap(niz[i].r,niz[i].l);
    }
    radi();
    ll ans = INF;
    ff(i,1,n){
        ans = min(ans, dp[i] + sejv[i] - niz[i].w);
    }
    if(ans < INF/2)cout << ans << "\n";
    else cout << -1 << "\n";

    return 0;
}

Compilation message (stderr)

pinball.cpp: In function 'void radi()':
pinball.cpp:6:27: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
    6 | #define ff(i,a,b) for(int (i) = (a); (i) <= (b); ++(i))
      |                           ^
pinball.cpp:58:5: note: in expansion of macro 'ff'
   58 |     ff(i,2,duz)update(1,1,duz,i,INF);
      |     ^~
pinball.cpp:6:27: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
    6 | #define ff(i,a,b) for(int (i) = (a); (i) <= (b); ++(i))
      |                           ^
pinball.cpp:59:5: note: in expansion of macro 'ff'
   59 |     ff(i,1,n){
      |     ^~
pinball.cpp: In function 'int main()':
pinball.cpp:6:27: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
    6 | #define ff(i,a,b) for(int (i) = (a); (i) <= (b); ++(i))
      |                           ^
pinball.cpp:73:5: note: in expansion of macro 'ff'
   73 |     ff(i,1,n){
      |     ^~
pinball.cpp:6:27: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
    6 | #define ff(i,a,b) for(int (i) = (a); (i) <= (b); ++(i))
      |                           ^
pinball.cpp:91:5: note: in expansion of macro 'ff'
   91 |     ff(i,1,n)niz[i] = {poj[niz[i].l], poj[niz[i].r], poj[niz[i].x], niz[i].w};
      |     ^~
pinball.cpp:6:27: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
    6 | #define ff(i,a,b) for(int (i) = (a); (i) <= (b); ++(i))
      |                           ^
pinball.cpp:93:5: note: in expansion of macro 'ff'
   93 |     ff(i,1,n)sejv[i] = dp[i];
      |     ^~
pinball.cpp:6:27: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
    6 | #define ff(i,a,b) for(int (i) = (a); (i) <= (b); ++(i))
      |                           ^
pinball.cpp:94:5: note: in expansion of macro 'ff'
   94 |     ff(i,1,n){
      |     ^~
pinball.cpp:6:27: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
    6 | #define ff(i,a,b) for(int (i) = (a); (i) <= (b); ++(i))
      |                           ^
pinball.cpp:102:5: note: in expansion of macro 'ff'
  102 |     ff(i,1,n){
      |     ^~

• Subtask 1: 0 / 11
• Subtask 2: 0 / 18
• Subtask 3: 0 / 22
• Subtask 4: 0 / 49