oj.uz

답안 #340178

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
340178 2020-12-27T08:41:02 Z Bill_00 Pinball (JOI14_pinball) C++14
51 / 100
 1000 ms 72392 KB 
#include <bits/stdc++.h>
#define ff first
#define ss second
#define pb push_back
#define mp make_pair
#define M 100005
#define MAX 1e18
typedef long long ll; 
using namespace std;
ll m,n,L,R,ans=MAX;
ll a[M],b[M];
ll c[M],d[M];

unordered_map<ll,bool>vis[2];
unordered_map<ll,ll>mn[2];

void update(bool type,ll up,ll id=1,ll l=1,ll r=n){
	if(r<L || R<l) return;
	if(L<=l && r<=R){
		if(vis[type][id]){
			mn[type][id]=min(mn[type][id],up);
		}
		else mn[type][id]=up;
		vis[type][id]=1;
		return;
	}
	ll m=l+r>>1;
	update(type,up,id*2,l,m);
	update(type,up,id*2+1,m+1,r);
	if(!vis[type][id*2+1]){
		mn[type][id]=mn[type][id*2];
		vis[type][id]=1;
		return;
	}
	if(!vis[type][id*2]){
		mn[type][id]=mn[type][id*2+1];
		vis[type][id]=1;
		return;
	}
	mn[type][id]=min(mn[type][id*2],mn[type][id*2+1]);
	vis[type][id]=1;
}

ll query(bool type,ll id=1,ll l=1,ll r=n){
	if(r<L | R<l) return MAX;
	if(L<=l && r<=R){
		if(vis[type][id]) return mn[type][id];
		else return MAX;
	}
	ll m=l+r>>1;
	return min(query(type,id*2,l,m),query(type,id*2+1,m+1,r));
}

int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	cin >> m >> n;
	for(int i=1;i<=m;++i){
		cin >> a[i] >> b[i];
		cin >> c[i] >> d[i];
	}
	L=R=1;
	update(0,0);
	L=R=n;
	update(1,0);
	for(int i=1;i<=m;++i){
		L=a[i],R=b[i];
		ll cost1=query(0);
		ll cost2=query(1);
		if(cost1!=MAX && cost2!=MAX){
			ans=min(ans,cost1+cost2+d[i]);
		}
		L=R=c[i];
		if(cost1!=MAX){
			update(0,cost1+d[i]);
		}
		if(cost2!=MAX){
			update(1,cost2+d[i]);
		}
	}
	if(ans==MAX) cout << -1;
	else cout << ans;
}

Compilation message

pinball.cpp: In function 'void update(bool, ll, ll, ll, ll)':
pinball.cpp:27:8: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   27 |  ll m=l+r>>1;
      |       ~^~
pinball.cpp: In function 'll query(bool, ll, ll, ll)':
pinball.cpp:45:6: warning: suggest parentheses around comparison in operand of '|' [-Wparentheses]
   45 |  if(r<L | R<l) return MAX;
      |     ~^~
pinball.cpp:50:8: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   50 |  ll m=l+r>>1;
      |       ~^~

Subtask #1
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct

Subtask #2
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 2 ms 492 KB Output is correct
10 Correct 3 ms 748 KB Output is correct
11 Correct 4 ms 1004 KB Output is correct
12 Correct 3 ms 1004 KB Output is correct
13 Correct 4 ms 1132 KB Output is correct
14 Correct 4 ms 1260 KB Output is correct

Subtask #3
22.0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 2 ms 492 KB Output is correct
10 Correct 3 ms 748 KB Output is correct
11 Correct 4 ms 1004 KB Output is correct
12 Correct 3 ms 1004 KB Output is correct
13 Correct 4 ms 1132 KB Output is correct
14 Correct 4 ms 1260 KB Output is correct
15 Correct 2 ms 492 KB Output is correct
16 Correct 3 ms 876 KB Output is correct
17 Correct 24 ms 3692 KB Output is correct
18 Correct 10 ms 620 KB Output is correct
19 Correct 22 ms 4088 KB Output is correct
20 Correct 21 ms 3196 KB Output is correct
21 Correct 5 ms 1260 KB Output is correct
22 Correct 17 ms 3192 KB Output is correct
23 Correct 22 ms 4344 KB Output is correct
24 Correct 16 ms 3576 KB Output is correct

Subtask #4
0 / 49.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 2 ms 492 KB Output is correct
10 Correct 3 ms 748 KB Output is correct
11 Correct 4 ms 1004 KB Output is correct
12 Correct 3 ms 1004 KB Output is correct
13 Correct 4 ms 1132 KB Output is correct
14 Correct 4 ms 1260 KB Output is correct
15 Correct 2 ms 492 KB Output is correct
16 Correct 3 ms 876 KB Output is correct
17 Correct 24 ms 3692 KB Output is correct
18 Correct 10 ms 620 KB Output is correct
19 Correct 22 ms 4088 KB Output is correct
20 Correct 21 ms 3196 KB Output is correct
21 Correct 5 ms 1260 KB Output is correct
22 Correct 17 ms 3192 KB Output is correct
23 Correct 22 ms 4344 KB Output is correct
24 Correct 16 ms 3576 KB Output is correct
25 Correct 218 ms 13876 KB Output is correct
26 Execution timed out 1089 ms 72392 KB Time limit exceeded
27 Halted 0 ms 0 KB -