Submission #967464

#	Time	Username	Problem	Language	Result	Execution time	Memory
967464		penguin133	Pinball (JOI14_pinball)	C++17	29 / 100	1048 ms	160064 KiB

pinball

#include <bits/stdc++.h>
using namespace std;
 
#define int long long
#define pi pair<int, int>
#define pii pair<int, pi>
#define fi first
#define se second
#ifdef _WIN32
#define getchar_unlocked _getchar_nolock
#endif
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
 
map <pi, int> mp[1005];
int n, m, A[100005], B[100005], C[100005], D[100005];
int dp(int x, int l, int r){
	if(l >= r)return 0;
	if(x == n + 1)return 1e18;
	if(mp[x].find({l, r}) != mp[x].end())return mp[x][{l, r}];
	int tmp = dp(x + 1, l, r);
	int lft = (A[x] <= l ? max(l, C[x]) : l), rgt = (B[x] >= r ? min(C[x], r) : r);
	tmp = min(tmp, dp(x + 1, lft, rgt) + D[x]);
	return mp[x][{l, r}] = tmp;
}
 
void solve(){
	cin >> n >> m;
	for(int i = 1; i <= n; i++)cin >> A[i] >> B[i] >> C[i] >> D[i];
	int res = dp(1, 1, m);
	if(res >= 1e17)cout << -1 << '\n';
	else cout << res;
}
 
main(){
	ios::sync_with_stdio(0);cin.tie(0);
	int tc = 1;
	//cin >> tc;
	for(int tc1=1;tc1<=tc;tc1++){
		// cout << "Case #" << tc1 << ": ";
		solve();
	}
}

Compilation message (stderr)

pinball.cpp:34:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   34 | main(){
      | ^~~~

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