oj.uz

Submission #304522

# Submission time Handle Problem Language Result Execution time Memory
304522 2020-09-21T12:59:05 Z oleh1421 Comparing Plants (IOI20_plants) C++17
25 / 100
 736 ms 129656 KB 
#define SYS
#ifdef SYS
#include "plants.h"
#endif // SYS


#include <bits/stdc++.h>
typedef long long ll;
using namespace std;
const int N=300010;
struct node{
    int mx,l,r,best;
};
node t[N*4];
int w[N*4];
int a[N];
int p[N];
int nn,kk;
node Merge(node A,node B){
    if (A.mx>B.mx) {
        return A;
    }
    if (A.mx<B.mx) {
        return B;
    }
    node C;
    C.mx=A.mx;
    C.l=A.l;
    C.r=B.r;
    if (A.best!=-1) C.best=A.best;
    else if (B.best!=-1) C.best=B.best;
    else if (B.l>=A.r+kk) C.best=B.l;
    else C.best=-1;
    return C;
}
void build(int v,int l,int r){
    if (l>r) return;
    w[v]=0;
    t[v].best=-1;
    if (l==r){
        t[v].mx=a[l];
        t[v].l=t[v].r=l;
        t[v].best=-1;
        return;
    }
    int m=(l+r)/2;
    build(v+v,l,m);
    build(v+v+1,m+1,r);
    t[v]=Merge(t[v+v],t[v+v+1]);
}
void push(int v){
    t[v+v].mx+=w[v];
    t[v+v+1].mx+=w[v];
    w[v+v]+=w[v];
    w[v+v+1]+=w[v];
    w[v]=0;
}
void upd(int v,int l,int r,int L,int R,int x){
    if (l>R || r<L) return;
    if (l>=L && r<=R){
        t[v].mx+=x;
        w[v]+=x;
        return;
    }
    push(v);
    int m=(l+r)/2;
    upd(v+v,l,m,L,R,x);
    upd(v+v+1,m+1,r,L,R,x);
    t[v]=Merge(t[v+v],t[v+v+1]);
}
void add(int n,int l,int r,int x){
    if (l<=r){
        upd(1,0,n-1,l,r,x);
    } else {
        upd(1,0,n-1,l,n-1,x);
        upd(1,0,n-1,0,r,x);
    }
}
int go1[N];
int go2[N];
int rp[N];
pair<int,int>t1[N*4];
void upd1(int v,int l,int r,int pos,int x){
    if (l==r){
        t1[v]={x,l};
        return;
    }
    int m=(l+r)/2;
    if (pos<=m) upd1(v+v,l,m,pos,x);
    else upd1(v+v+1,m+1,r,pos,x);
    t1[v]=max(t1[v+v],t1[v+v+1]);
}
pair<int,int> get1(int v,int l,int r,int L,int R){
    if (l>R || r<L) return {-1,-1};
    if (l>=L && r<=R) return t1[v];
    int m=(l+r)/2;
    return max(get1(v+v,l,m,L,R),get1(v+v+1,m+1,r,L,R));
}
int get_pos(int n,int l,int r){
    pair<int,int>cur;
    if (l<=r){
        cur=get1(1,0,n-1,l,r);
    } else {
        cur=max(get1(1,0,n-1,0,r),get1(1,0,n-1,l,n-1));
    }
    if (cur.first<=0) return -1;
    return cur.second;
}

vector<int>g[N];
bool can[5010][5010];
void dfs(int v,int root){
    can[root][v]=true;
    for (int to:g[v]){
        if (!can[root][to]){
            dfs(to,root);
        }
    }
}
void init(int k, std::vector<int> r) {
    int n=r.size();
    nn=n;
    kk=k;
    for (int &i:r){
        i=k-i-1;
    }
    for (int i=0;i<n;i++) a[i]=r[i];
    build(1,0,n-1);
    for (int cur=n;cur>=1;cur--){
        if (t[1].mx>k-1) exit(1);
        int pos=(t[1].best==-1 ? t[1].l : t[1].best);
        p[pos]=cur;
        rp[cur]=pos;
//        cout<<pos<<endl;
        add(n,(pos-k+1+n)%n,pos,1);
        add(n,pos,pos,-n*3);
    }
    for (int cur=1;cur<=n;cur++){
        int pos=rp[cur];
        int nxt1=get_pos(n,pos,(pos+k-1)%n);
        if (nxt1==-1) nxt1=pos;
        go1[pos]=nxt1;
        int nxt2=get_pos(n,(pos-k+1+n)%n,pos);
        if (nxt2==-1) nxt2=pos;
        go2[pos]=nxt2;
        upd1(1,0,n-1,pos,cur);
        if (nxt1!=pos) {
            g[pos].push_back(nxt1);
//            cout<<pos<<" "<<nxt1<<endl;
        }
        if (nxt2!=pos) {
            g[pos].push_back(nxt2);
//            cout<<pos<<" "<<nxt2<<endl;
        }
    }
    for (int i=0;i<n;i++){
        dfs(i,i);
    }

	return;
}

int compare_plants(int x, int y) {
    if (can[x][y]) return 1;
    if (can[y][x]) return -1;
	return 0;
}

#ifndef SYS
#include <cstdio>
#include <cassert>
#include <vector>

static int n, k, q;
static std::vector<int> r;
static std:: vector<int> x;
static std:: vector<int> y;
static std:: vector<int> answer;
int main() {
	assert(scanf("%d%d%d", &n, &k, &q) == 3);
	r.resize(n);
	answer.resize(q);
	for (int i = 0; i < n; i++) {
		int value;
		assert(scanf("%d", &value) == 1);
		r[i] = value;
	}
	x.resize(q);
	y.resize(q);
	for (int i = 0; i < q; i++) {
		assert(scanf("%d%d", &x[i], &y[i]) == 2);
	}
	fclose(stdin);

	init(k, r);
	for (int i = 0; i < q; i++) {
		answer[i] = compare_plants(x[i], y[i]);
	}

	for (int i = 0; i < q; i++) {
		printf("%d\n", answer[i]);
	}

	fclose(stdout);

	return 0;
}
#endif

/*
4 2 2
0 1 0 1
0 3
1 3

*/

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 7424 KB Output is correct
2 Correct 5 ms 7424 KB Output is correct
3 Correct 5 ms 7424 KB Output is correct
4 Correct 5 ms 7424 KB Output is correct
5 Correct 5 ms 7424 KB Output is correct
6 Correct 76 ms 10360 KB Output is correct
7 Runtime error 155 ms 67448 KB Execution killed with signal 11 (could be triggered by violating memory limits)
8 Halted 0 ms 0 KB -

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 7552 KB Output is correct
2 Correct 5 ms 7424 KB Output is correct
3 Correct 5 ms 7424 KB Output is correct
4 Correct 5 ms 7424 KB Output is correct
5 Correct 6 ms 7808 KB Output is correct
6 Correct 17 ms 12544 KB Output is correct
7 Correct 276 ms 35836 KB Output is correct
8 Correct 8 ms 7936 KB Output is correct
9 Correct 17 ms 12544 KB Output is correct
10 Correct 284 ms 35832 KB Output is correct
11 Correct 192 ms 35320 KB Output is correct
12 Correct 187 ms 35320 KB Output is correct
13 Correct 267 ms 35840 KB Output is correct

Subtask #3
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 7552 KB Output is correct
2 Correct 5 ms 7424 KB Output is correct
3 Correct 5 ms 7424 KB Output is correct
4 Correct 5 ms 7424 KB Output is correct
5 Correct 6 ms 7808 KB Output is correct
6 Correct 17 ms 12544 KB Output is correct
7 Correct 276 ms 35836 KB Output is correct
8 Correct 8 ms 7936 KB Output is correct
9 Correct 17 ms 12544 KB Output is correct
10 Correct 284 ms 35832 KB Output is correct
11 Correct 192 ms 35320 KB Output is correct
12 Correct 187 ms 35320 KB Output is correct
13 Correct 267 ms 35840 KB Output is correct
14 Runtime error 258 ms 76276 KB Execution killed with signal 11 (could be triggered by violating memory limits)
15 Halted 0 ms 0 KB -

Subtask #4
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 7424 KB Output is correct
2 Correct 5 ms 7552 KB Output is correct
3 Correct 92 ms 20088 KB Output is correct
4 Runtime error 674 ms 129656 KB Execution killed with signal 11 (could be triggered by violating memory limits)
5 Halted 0 ms 0 KB -

Subtask #5
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 7424 KB Output is correct
2 Correct 5 ms 7424 KB Output is correct
3 Correct 5 ms 7424 KB Output is correct
4 Correct 5 ms 7424 KB Output is correct
5 Correct 5 ms 7552 KB Output is correct
6 Correct 7 ms 7936 KB Output is correct
7 Correct 20 ms 9344 KB Output is correct
8 Correct 21 ms 9344 KB Output is correct
9 Correct 21 ms 9344 KB Output is correct
10 Correct 21 ms 9472 KB Output is correct
11 Correct 20 ms 9344 KB Output is correct
12 Correct 21 ms 9344 KB Output is correct
13 Correct 21 ms 9464 KB Output is correct

Subtask #6
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 7424 KB Output is correct
2 Correct 5 ms 7424 KB Output is correct
3 Correct 5 ms 7424 KB Output is correct
4 Correct 5 ms 7424 KB Output is correct
5 Correct 17 ms 12416 KB Output is correct
6 Runtime error 736 ms 122064 KB Execution killed with signal 11 (could be triggered by violating memory limits)
7 Halted 0 ms 0 KB -

Subtask #7
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 7424 KB Output is correct
2 Correct 5 ms 7424 KB Output is correct
3 Correct 5 ms 7424 KB Output is correct
4 Correct 5 ms 7424 KB Output is correct
5 Correct 5 ms 7424 KB Output is correct
6 Correct 76 ms 10360 KB Output is correct
7 Runtime error 155 ms 67448 KB Execution killed with signal 11 (could be triggered by violating memory limits)
8 Halted 0 ms 0 KB -