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Submission #410334

# Submission time Handle Problem Language Result Execution time Memory
410334 2021-05-22T14:13:58 Z alishahali1382 Bitaro, who Leaps through Time (JOI19_timeleap) C++14
0 / 100
 722 ms 524292 KB 
#include <bits/stdc++.h>
#pragma GCC optimize ("O2,unroll-loops")
//#pragma GCC optimize("no-stack-protector,fast-math")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")

using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<pii, int> piii;
typedef pair<ll, ll> pll;
#define debug(x) cerr<<#x<<'='<<(x)<<endl;
#define debugp(x) cerr<<#x<<"= {"<<(x.first)<<", "<<(x.second)<<"}"<<endl;
#define debug2(x, y) cerr<<"{"<<#x<<", "<<#y<<"} = {"<<(x)<<", "<<(y)<<"}"<<endl;
#define debugv(v) {cerr<<#v<<" : ";for (auto x:v) cerr<<x<<' ';cerr<<endl;}
#define all(x) x.begin(), x.end()
#define pb push_back
#define kill(x) return cout<<x<<'\n', 0;

const int inf=1000000010;
const ll INF=1000000000000001000LL;
const int mod=1000000007;
const int MAXN=300010, LOG=20;

int n, m, k, u, v, x, y, t, l, r, a, b, ans;
int A[MAXN];

struct Node{
	ll dp[2][2];
	Node(ll l=0, ll r=0){
		dp[0][0]=l;
		dp[0][1]=0;
		dp[1][0]=0;
		dp[1][1]=-r;
	}
};
Node Merge(Node X, Node Y){
	Node Z;
	for (int a=0; a<2; a++) for (int b=0; b<2; b++)
		Z.dp[a][b]=max(X.dp[a][0]+Y.dp[1][b], X.dp[a][1]+Y.dp[0][b]);
	return Z;
}
struct Solver{
	int L[MAXN], R[MAXN];
	Node seg[MAXN<<2];
	Solver(){
		seg[0].dp[0][0]=-INF;
		seg[0].dp[0][1]=0;
		seg[0].dp[1][0]=0;
		seg[0].dp[1][1]=-INF;
	}
	void Build(int id, int tl, int tr){
		if (tr-tl==1){/*
			seg[id].dp[0][0]=L[tl];
			seg[id].dp[0][1]=0;
			seg[id].dp[1][0]=0;
			seg[id].dp[1][1]=-R[tl];*/
			seg[id]=Node(L[tl], R[tl]);
			return ;
		}
		int mid=(tl+tr)>>1;
		Build(id<<1, tl, mid);
		Build(id<<1 | 1, mid, tr);
		seg[id]=Merge(seg[id<<1], seg[id<<1 | 1]);
	}
	void Set(int id, int tl, int tr, int pos){
		if (pos<tl || tr<=pos) return ;
		if (tr-tl==1){
			seg[id].dp[0][0]=L[tl];
			seg[id].dp[0][1]=0;
			seg[id].dp[1][0]=0;
			seg[id].dp[1][1]=-R[tl];
			return ;	
		}
		int mid=(tl+tr)>>1;
		Set(id<<1, tl, mid, pos);
		Set(id<<1 | 1, mid, tr, pos);
		seg[id]=Merge(seg[id<<1], seg[id<<1 | 1]);	
	}
	Node Get(int id, int tl, int tr, int l, int r){
		if (r<=tl || tr<=l) return seg[0];
		if (l<=tl && tr<=r) return seg[id];
		int mid=(tl+tr)>>1;
		return Merge(Get(id<<1, tl, mid, l, r), Get(id<<1 | 1, mid, tr, l, r));
	}
	ll Solve(int x, int y, int a, int b){
		a-=x;
		b-=y;
		Node X(a, a);
		Node Y=Get(1, 1, n, x, y);
		Node Z(b, b);
		X=Merge(X, Merge(Y, Z));
//		return max(X.dp[0][1], X.dp[1][0]);
		return X.dp[0][1];
	}
} S1, S2;

void print(Node X){
	cerr<<X.dp[0][0]<<" "<<X.dp[0][1]<<"\n";
	cerr<<X.dp[1][0]<<" "<<X.dp[1][1]<<"\n";
	cerr<<"\n";
}

int main(){
	ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
	//freopen("input.txt", "r", stdin);
	//freopen("output.txt", "w", stdout);
	cin>>n>>m;
	for (int i=1; i<n; i++){
		cin>>l>>r; r--;
		S1.L[i]=l-i;
		S2.L[n-i]=l-(n-i);
		S1.R[i]=r-i;
		S2.R[n-i]=r-(n-i);
	}
	S1.Build(1, 1, n);
	S2.Build(1, 1, n);
	/*
	debug(S1.seg[1].dp[0][1])
	debug(S1.seg[1].dp[1][0])
	print(S1.seg[1]);
	print(Merge(Node(2, 2), S1.seg[1]));
	print(Merge(S1.seg[1], Node(5, 5)));
	print(Merge(Merge(Node(2, 2), S1.seg[1]), Node(5, 5)));
	*/
	
	while (m--){
		cin>>t;
		if (t==1){
			cin>>x>>l>>r;
			r--;
			S1.L[x]=l-x;
			S2.L[n-x]=l-(n-x);
			S1.R[x]=r-x;
			S2.R[n-x]=r-(n-x);
			S1.Set(1, 1, n, x);
			S2.Set(1, 1, n, n-x);
		}
		else{
			cin>>x>>a>>y>>b;
			if (x<y) cout<<S1.Solve(x, y, a, b)<<"\n";
			else cout<<S2.Solve(n+1-x, n+1-y, a, b)<<"\n";
		}
	}
	
	return 0;
}
/*
5 1
3 5
4 8
2 6
5 10
2 5 3 1 10

5 1
5 10
2 6
4 8
3 5
2 1 3 5 10

*/

Subtask #1
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 41 ms 75468 KB Output is correct
2 Correct 40 ms 75400 KB Output is correct
3 Correct 40 ms 75440 KB Output is correct
4 Correct 41 ms 75360 KB Output is correct
5 Correct 40 ms 75396 KB Output is correct
6 Correct 40 ms 75396 KB Output is correct
7 Correct 41 ms 75424 KB Output is correct
8 Correct 41 ms 75384 KB Output is correct
9 Correct 40 ms 75376 KB Output is correct
10 Correct 40 ms 75464 KB Output is correct
11 Correct 42 ms 75460 KB Output is correct
12 Correct 42 ms 75548 KB Output is correct
13 Correct 42 ms 75460 KB Output is correct
14 Correct 42 ms 75520 KB Output is correct
15 Correct 42 ms 75456 KB Output is correct
16 Correct 43 ms 75476 KB Output is correct
17 Correct 44 ms 75568 KB Output is correct
18 Correct 42 ms 75540 KB Output is correct
19 Correct 41 ms 75460 KB Output is correct
20 Correct 42 ms 75528 KB Output is correct
21 Correct 42 ms 75476 KB Output is correct
22 Correct 42 ms 75524 KB Output is correct
23 Correct 40 ms 75460 KB Output is correct
24 Correct 42 ms 75516 KB Output is correct
25 Correct 44 ms 75540 KB Output is correct
26 Correct 42 ms 75468 KB Output is correct
27 Correct 42 ms 75448 KB Output is correct
28 Correct 41 ms 75460 KB Output is correct
29 Correct 41 ms 75440 KB Output is correct
30 Correct 43 ms 75500 KB Output is correct
31 Correct 42 ms 75532 KB Output is correct
32 Correct 41 ms 75524 KB Output is correct
33 Correct 42 ms 75588 KB Output is correct
34 Correct 42 ms 75432 KB Output is correct
35 Correct 41 ms 75540 KB Output is correct
36 Correct 42 ms 75504 KB Output is correct
37 Correct 41 ms 75508 KB Output is correct
38 Correct 40 ms 75480 KB Output is correct
39 Correct 41 ms 75440 KB Output is correct
40 Correct 42 ms 75476 KB Output is correct
41 Runtime error 288 ms 524292 KB Execution killed with signal 9

Subtask #2
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 715 ms 99460 KB Output is correct
2 Correct 688 ms 98872 KB Output is correct
3 Correct 684 ms 98984 KB Output is correct
4 Correct 691 ms 98844 KB Output is correct
5 Correct 692 ms 99508 KB Output is correct
6 Correct 690 ms 99396 KB Output is correct
7 Correct 720 ms 99576 KB Output is correct
8 Correct 709 ms 100464 KB Output is correct
9 Correct 684 ms 98988 KB Output is correct
10 Correct 710 ms 99620 KB Output is correct
11 Correct 702 ms 99696 KB Output is correct
12 Correct 716 ms 100300 KB Output is correct
13 Correct 722 ms 100484 KB Output is correct
14 Runtime error 305 ms 524292 KB Execution killed with signal 9

Subtask #3
0 / 66.0

# Verdict Execution time Memory Grader output
1 Correct 41 ms 75468 KB Output is correct
2 Correct 40 ms 75400 KB Output is correct
3 Correct 40 ms 75440 KB Output is correct
4 Correct 41 ms 75360 KB Output is correct
5 Correct 40 ms 75396 KB Output is correct
6 Correct 40 ms 75396 KB Output is correct
7 Correct 41 ms 75424 KB Output is correct
8 Correct 41 ms 75384 KB Output is correct
9 Correct 40 ms 75376 KB Output is correct
10 Correct 40 ms 75464 KB Output is correct
11 Correct 42 ms 75460 KB Output is correct
12 Correct 42 ms 75548 KB Output is correct
13 Correct 42 ms 75460 KB Output is correct
14 Correct 42 ms 75520 KB Output is correct
15 Correct 42 ms 75456 KB Output is correct
16 Correct 43 ms 75476 KB Output is correct
17 Correct 44 ms 75568 KB Output is correct
18 Correct 42 ms 75540 KB Output is correct
19 Correct 41 ms 75460 KB Output is correct
20 Correct 42 ms 75528 KB Output is correct
21 Correct 42 ms 75476 KB Output is correct
22 Correct 42 ms 75524 KB Output is correct
23 Correct 40 ms 75460 KB Output is correct
24 Correct 42 ms 75516 KB Output is correct
25 Correct 44 ms 75540 KB Output is correct
26 Correct 42 ms 75468 KB Output is correct
27 Correct 42 ms 75448 KB Output is correct
28 Correct 41 ms 75460 KB Output is correct
29 Correct 41 ms 75440 KB Output is correct
30 Correct 43 ms 75500 KB Output is correct
31 Correct 42 ms 75532 KB Output is correct
32 Correct 41 ms 75524 KB Output is correct
33 Correct 42 ms 75588 KB Output is correct
34 Correct 42 ms 75432 KB Output is correct
35 Correct 41 ms 75540 KB Output is correct
36 Correct 42 ms 75504 KB Output is correct
37 Correct 41 ms 75508 KB Output is correct
38 Correct 40 ms 75480 KB Output is correct
39 Correct 41 ms 75440 KB Output is correct
40 Correct 42 ms 75476 KB Output is correct
41 Runtime error 288 ms 524292 KB Execution killed with signal 9