답안 #708159

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
708159	2023-03-11T07:22:14 Z	Dan4Life	Pinball (JOI14_pinball)	C++17	100 / 100	378 ms	34376 KB

pinball

#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define sz(a) (int)a.size()
#define all(a) a.begin(),a.end()
#define int long long
const int mxN = (int)2e5+10, LINF = (int)1e18;
int n, m, a[mxN], b[mxN], c[mxN], d[mxN];
unordered_map<int,int> ind;
int segTree[2][4*mxN];
vector<int> v;
int mxM;

void upd(int i, int v, int t, int p=0, int l=0, int r=mxM){
	if(l==r){ segTree[t][p]=min(segTree[t][p],v); return; }
	int mid = (l+r)/2; int lp = p+1, rp = p+2*(mid-l+1);
	if(i<=mid) upd(i,v,t,lp,l,mid);
	else upd(i,v,t,rp,mid+1,r);
	segTree[t][p] = min(segTree[t][lp],segTree[t][rp]);
}

int query(int i, int j, int t, int p=0, int l=0, int r=mxM){
	if(i>r or j<l or i>j) return LINF;
	if(i<=l and r<=j) return segTree[t][p];
	int mid = (l+r)/2; int lp = p+1, rp = p+2*(mid-l+1);
	return min(query(i,j,t,lp,l,mid),query(i,j,t,rp,mid+1,r));
} 

main() {
	cin >> m >> n; int ans = LINF;
	for(int i = 1; i <= m; i++){
		cin >> a[i] >> b[i] >> c[i] >> d[i];
		v.pb(a[i]), v.pb(b[i]), v.pb(c[i]);
	} v.pb(1), v.pb(n);
	sort(all(v)); v.erase(unique(all(v)),v.end());
	for(int x = 0; auto u : v) ind[u]=x++; mxM = sz(v);
	for(int i = 1; i <= m; i++) a[i]=ind[a[i]],b[i]=ind[b[i]],c[i]=ind[c[i]];
	for(int i = 0; i < 2; i++) fill(segTree[i],segTree[i]+mxN*4,LINF);
	upd(0,0,0), upd(sz(v)-1,0,1);
	for(int i = 1; i <= m; i++){
		int L = query(a[i],b[i],0)+d[i]; upd(c[i],L,0); 
		int R = query(a[i],b[i],1)+d[i]; upd(c[i],R,1);
		ans = min(ans, L+R-d[i]);
	}
	cout << (ans==LINF?-1:ans) << "\n";
}

Compilation message

pinball.cpp:29:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   29 | main() {
      | ^~~~
pinball.cpp: In function 'int main()':
pinball.cpp:36:17: warning: range-based 'for' loops with initializer only available with '-std=c++2a' or '-std=gnu++2a'
   36 |  for(int x = 0; auto u : v) ind[u]=x++; mxM = sz(v);
      |                 ^~~~
pinball.cpp:36:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   36 |  for(int x = 0; auto u : v) ind[u]=x++; mxM = sz(v);
      |  ^~~
pinball.cpp:36:41: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   36 |  for(int x = 0; auto u : v) ind[u]=x++; mxM = sz(v);
      |                                         ^~~

Subtask #1
11.0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	12756 KB	Output is correct
2	Correct	5 ms	12756 KB	Output is correct
3	Correct	8 ms	12756 KB	Output is correct
4	Correct	7 ms	12756 KB	Output is correct
5	Correct	5 ms	12756 KB	Output is correct
6	Correct	6 ms	12756 KB	Output is correct
7	Correct	6 ms	12756 KB	Output is correct
8	Correct	6 ms	12756 KB	Output is correct

Subtask #2
18.0 / 18.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	12756 KB	Output is correct
2	Correct	5 ms	12756 KB	Output is correct
3	Correct	8 ms	12756 KB	Output is correct
4	Correct	7 ms	12756 KB	Output is correct
5	Correct	5 ms	12756 KB	Output is correct
6	Correct	6 ms	12756 KB	Output is correct
7	Correct	6 ms	12756 KB	Output is correct
8	Correct	6 ms	12756 KB	Output is correct
9	Correct	6 ms	12884 KB	Output is correct
10	Correct	6 ms	12884 KB	Output is correct
11	Correct	6 ms	12868 KB	Output is correct
12	Correct	6 ms	12884 KB	Output is correct
13	Correct	6 ms	12864 KB	Output is correct
14	Correct	5 ms	12884 KB	Output is correct

Subtask #3
22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	12756 KB	Output is correct
2	Correct	5 ms	12756 KB	Output is correct
3	Correct	8 ms	12756 KB	Output is correct
4	Correct	7 ms	12756 KB	Output is correct
5	Correct	5 ms	12756 KB	Output is correct
6	Correct	6 ms	12756 KB	Output is correct
7	Correct	6 ms	12756 KB	Output is correct
8	Correct	6 ms	12756 KB	Output is correct
9	Correct	6 ms	12884 KB	Output is correct
10	Correct	6 ms	12884 KB	Output is correct
11	Correct	6 ms	12868 KB	Output is correct
12	Correct	6 ms	12884 KB	Output is correct
13	Correct	6 ms	12864 KB	Output is correct
14	Correct	5 ms	12884 KB	Output is correct
15	Correct	6 ms	12756 KB	Output is correct
16	Correct	7 ms	12884 KB	Output is correct
17	Correct	9 ms	13012 KB	Output is correct
18	Correct	8 ms	12872 KB	Output is correct
19	Correct	9 ms	13072 KB	Output is correct
20	Correct	9 ms	12916 KB	Output is correct
21	Correct	7 ms	12884 KB	Output is correct
22	Correct	9 ms	13012 KB	Output is correct
23	Correct	8 ms	13088 KB	Output is correct
24	Correct	8 ms	13012 KB	Output is correct

Subtask #4
49.0 / 49.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	12756 KB	Output is correct
2	Correct	5 ms	12756 KB	Output is correct
3	Correct	8 ms	12756 KB	Output is correct
4	Correct	7 ms	12756 KB	Output is correct
5	Correct	5 ms	12756 KB	Output is correct
6	Correct	6 ms	12756 KB	Output is correct
7	Correct	6 ms	12756 KB	Output is correct
8	Correct	6 ms	12756 KB	Output is correct
9	Correct	6 ms	12884 KB	Output is correct
10	Correct	6 ms	12884 KB	Output is correct
11	Correct	6 ms	12868 KB	Output is correct
12	Correct	6 ms	12884 KB	Output is correct
13	Correct	6 ms	12864 KB	Output is correct
14	Correct	5 ms	12884 KB	Output is correct
15	Correct	6 ms	12756 KB	Output is correct
16	Correct	7 ms	12884 KB	Output is correct
17	Correct	9 ms	13012 KB	Output is correct
18	Correct	8 ms	12872 KB	Output is correct
19	Correct	9 ms	13072 KB	Output is correct
20	Correct	9 ms	12916 KB	Output is correct
21	Correct	7 ms	12884 KB	Output is correct
22	Correct	9 ms	13012 KB	Output is correct
23	Correct	8 ms	13088 KB	Output is correct
24	Correct	8 ms	13012 KB	Output is correct
25	Correct	32 ms	14288 KB	Output is correct
26	Correct	75 ms	17448 KB	Output is correct
27	Correct	214 ms	23780 KB	Output is correct
28	Correct	252 ms	22152 KB	Output is correct
29	Correct	161 ms	22188 KB	Output is correct
30	Correct	264 ms	22928 KB	Output is correct
31	Correct	322 ms	28808 KB	Output is correct
32	Correct	315 ms	27224 KB	Output is correct
33	Correct	56 ms	17056 KB	Output is correct
34	Correct	156 ms	23556 KB	Output is correct
35	Correct	325 ms	34372 KB	Output is correct
36	Correct	363 ms	34308 KB	Output is correct
37	Correct	378 ms	34376 KB	Output is correct
38	Correct	335 ms	34228 KB	Output is correct

답안 #708159

Compilation message

Subtask #1 11.0 / 11.0

Subtask #2 18.0 / 18.0

Subtask #3 22.0 / 22.0

Subtask #4 49.0 / 49.0

Subtask #1
11.0 / 11.0

Subtask #2
18.0 / 18.0

Subtask #3
22.0 / 22.0

Subtask #4
49.0 / 49.0