Submission #1092625

#	Time	Username	Problem	Language	Result	Execution time	Memory
1092625		vjudge1	Pinball (JOI14_pinball)	C++17	51 / 100	1048 ms	2224 KiB

pinball

#include <bits/stdc++.h>
#pragma GCC optimize("Ofast")
#pragma GCC target("avx2")
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")
#pragma GCC target("popcnt")
using namespace std;
 
using ll = long long;
using ull = unsigned long long;
using lld = long double;
using ii = pair<int,int>;
using pll = pair<ll, ll>;
 
using vi = vector<int>;
using vll = vector<ll>;
using vii = vector<ii>;
using vpll = vector<pll>;
using vlld = vector<lld>;
 
// #define endl '\n'
#define all(x) x.begin(),x.end()
#define lsb(x) x&(-x)
#define gcd(a,b) __gcd(a,b)
#define sz(x) (int)x.size()
#define mp make_pair
#define pb push_back
#define fi first
#define se second
#define fls cout.flush()
 
#define fore(i,l,r) for(auto i=l;i<r;i++)
#define fo(i,n) fore(i,0,n)
#define forex(i,r,l) for(auto i=r; i>=l;i--)
#define ffo(i,n) forex(i,n-1,0)
 
bool cmin(ll &a, ll b) { if(b<a){a=b;return 1;}return 0; }
bool cmax(ll &a, ll b) { if(b>a){a=b;return 1;}return 0; }
void valid(ll in) { cout<<((in)?"YES\n":"NO\n"); }
ll lcm(ll a, ll b) { return (a/gcd(a,b))*b; }
ll gauss(ll n) { return (n*(n+1))/2; }

const int N = 204;

struct device { ll a, b, c, d; };
void test_case() {
    ll n, m;
    cin >> n >> m;
    vector<device> a(n+1);
    vll dp1(n+1, 1e18), dpn(n+1, 1e18);
    dp1[0] = dpn[0] = 0;
    ll ans = 1e18;
    fore (i, 1, n+1) {
        cin >> a[i].a >> a[i].b >> a[i].c >> a[i].d;
        a[0].c = 1;
        fo (j, i) {
            if(a[i].a <= a[j].c && a[j].c <= a[i].b) {
                dp1[i] = min(dp1[i], dp1[j] + a[i].d);
            }
        }
        a[0].c = m;
        fo (j, i) {
            if (a[i].a <= a[j].c && a[j].c <= a[i].b) {
                dpn[i] = min(dpn[i], dpn[j] + a[i].d);
            }
        }
        ans = min(ans, dp1[i] + dpn[i] - a[i].d);
    }
    cout << (ans == 1e18 ? -1 : ans) << '\n';
}

int main() {
    int tt = 1;
    // cin >> tt;
    while(tt--) test_case();
}

Compilation message (stderr)

pinball.cpp:4: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    4 | #pragma GCC optimization ("O3")
      | 
pinball.cpp:5: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    5 | #pragma GCC optimization ("unroll-loops")
      |

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