Submission #937725

#	Time	Username	Problem	Language	Result	Execution time	Memory
937725		KiaRez	Pinball (JOI14_pinball)	C++17	100 / 100	245 ms	59632 KiB

pinball

/*
    IN THE NAME OF GOD
*/
#include <bits/stdc++.h>

// #pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
// #pragma GCC optimize("O3")
// #pragma GCC optimize("unroll-loops")

using namespace std;

typedef long long ll;
typedef pair<ll, ll> pll;
typedef pair<int, int> pii;
typedef long double ld;

#define F                                      first
#define S                                      second
#define Mp                                     make_pair
#define pb                                     push_back
#define pf                                     push_front
#define size(x)                                ((ll)x.size())
#define all(x)                                 (x).begin(),(x).end()
#define kill(x)		                           cout << x << '\n', exit(0);
#define fuck(x)                                cout << "(" << #x << " , " << x << ")" << endl
#define endl                                   '\n'

const int N = 3e5+23, lg = 20;
ll Mod = 1e9+7; //998244353;

inline ll MOD(ll a, ll mod=Mod) {a%=mod; (a<0)&&(a+=mod); return a;}
inline ll poww(ll a, ll b, ll mod=Mod) {
    ll ans = 1;
    a=MOD(a, mod);
    while (b) {
        if (b & 1) ans = MOD(ans*a, mod);
        b >>= 1;
        a = MOD(a*a, mod);
    }
    return ans;
}

ll n, m, a[N], b[N], c[N], d[N], dp[2][N], seg[2][8*N];
vector<ll> comp;

void update(int ind, ll val, int id) {
	if(ind == 0) return;
	if(ind >= (1<<lg)) seg[id][ind] = min(val, seg[id][ind]);
	else seg[id][ind] = min(seg[id][2*ind], seg[id][2*ind+1]);
	update(ind/2, val, id);
}

ll query(int l, int r, int id, int ind=1, int lc=1, int rc=(1<<lg)+1) {
	if(l>=rc || lc>=r) return (ll)1e18;
	if(lc>=l && rc<=r) return seg[id][ind];
	int mid = (lc+rc)/2;
	return min(query(l, r, id, 2*ind, lc, mid), query(l, r, id, 2*ind+1, mid, rc));
}

ll get(ll val) {
	int ptr = lower_bound(all(comp), val) - comp.begin() + 1;
	return ptr;
}

int main () {
	ios_base::sync_with_stdio(false), cin.tie(0);

	cin>>m>>n;
	comp.pb(n); comp.pb(n+1);
	comp.pb(1);
	for(int i=1; i<=m; i++) {
		cin>>a[i]>>b[i]>>c[i]>>d[i];
		comp.pb(a[i]); comp.pb(b[i]+1); comp.pb(c[i]);
	}
	sort(all(comp));
	comp.resize(unique(all(comp)) - comp.begin());

	fill(seg[0], seg[0]+8*N, 1e18);
	fill(seg[1], seg[1]+8*N, 1e18);
	update((1<<lg), 0, 0);
	update(size(comp)+(1<<lg)-2, 0, 1);

	ll ans = 1e18;
	for(int i=1; i<=m; i++) {
		dp[0][i] = min(query(get(a[i]), get(b[i]+1), 0) + d[i], (ll)1e18);
		dp[1][i] = min(query(get(a[i]), get(b[i]+1), 1) + d[i], (ll)1e18);
		if(dp[0][i] != 1e18 && dp[1][i] != 1e18) {
			ans = min(ans, dp[0][i] + dp[1][i] - d[i]);
		}
		update(get(c[i])+(1<<lg)-1, dp[0][i], 0);
		update(get(c[i])+(1<<lg)-1, dp[1][i], 1);
	}

	cout<<(ans==1e18 ? -1 : ans)<<endl;

	return 0;
}

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