oj.uz

Submission #415031

# Submission time Handle Problem Language Result Execution time Memory
415031 2021-05-31T12:58:35 Z MKopchev Comparing Plants (IOI20_plants) C++14
27 / 100
 536 ms 15720 KB 
#include "plants.h"
#include<bits/stdc++.h>
using namespace std;

const int nmax=2e5+42;

int my_n,my_k;
int inp[nmax];

struct info
{
    int mini,lazy;
    int pos;
};
info tree[4*nmax];

void push(int node)
{
    tree[node*2].lazy+=tree[node].lazy;
    tree[node*2+1].lazy+=tree[node].lazy;
    tree[node].lazy=0;
}

info actual(info a)
{
    a.mini+=a.lazy;
    a.lazy=0;
    return a;
}
info my_merge(info a,info b)
{
    a=actual(a);
    b=actual(b);

    if(a.mini<b.mini)return a;
    if(a.mini>b.mini)return b;

    if(b.pos-a.pos<=my_k-1)return a;
    return b;
}

void build(int node,int l,int r)
{
    if(l==r)
    {
        tree[node].mini=inp[l];
        tree[node].lazy=0;
        tree[node].pos=l;

        return;
    }

    int av=(l+r)/2;
    build(node*2,l,av);
    build(node*2+1,av+1,r);

    tree[node]=my_merge(tree[node*2],tree[node*2+1]);
}

void update(int node,int l,int r,int lq,int rq,int val)
{
    if(l==lq&&r==rq)
    {
        tree[node].lazy+=val;
        return;
    }

    push(node);

    int av=(l+r)/2;

    if(lq<=av)update(node*2,l,av,lq,min(av,rq),val);
    if(av<rq)update(node*2+1,av+1,r,max(av+1,lq),rq,val);

    tree[node]=my_merge(tree[node*2],tree[node*2+1]);
}
int outp[nmax];

void init(int k, std::vector<int> r) {
	my_n=r.size();
	my_k=k;

	for(int i=1;i<=my_n;i++)inp[i]=r[i-1];

	build(1,1,my_n);

	for(int i=1;i<=my_n;i++)
    {
        info cur=actual(tree[1]);

        int pos=cur.pos;

        //cout<<"pos= "<<pos<<endl;

        outp[pos]=my_n-i;

        update(1,1,my_n,pos,pos,1e9);

        int l=pos-(k-1);
        int r=pos-1;

        if(1<=l)update(1,1,my_n,l,r,-1);
        else
        {
            l=l+my_n;

            //cout<<"other "<<l<<" "<<my_n<<" and "<<1<<" "<<r<<endl;

            update(1,1,my_n,l,my_n,-1);

            if(r>=1)update(1,1,my_n,1,r,-1);
        }
    }

    //for(int i=1;i<=my_n;i++)printf("%i ",outp[i]);printf("\n");
}

int compare_plants(int x, int y) {
    x++;
    y++;

	if(outp[x]>outp[y])return 1;
	return -1;
}
/*
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;
}
*/

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Incorrect 1 ms 204 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 2 ms 204 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 4 ms 332 KB Output is correct
7 Correct 75 ms 5316 KB Output is correct
8 Correct 2 ms 332 KB Output is correct
9 Correct 4 ms 444 KB Output is correct
10 Correct 72 ms 5316 KB Output is correct
11 Correct 76 ms 5092 KB Output is correct
12 Correct 63 ms 5348 KB Output is correct
13 Correct 79 ms 5324 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 2 ms 204 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 4 ms 332 KB Output is correct
7 Correct 75 ms 5316 KB Output is correct
8 Correct 2 ms 332 KB Output is correct
9 Correct 4 ms 444 KB Output is correct
10 Correct 72 ms 5316 KB Output is correct
11 Correct 76 ms 5092 KB Output is correct
12 Correct 63 ms 5348 KB Output is correct
13 Correct 79 ms 5324 KB Output is correct
14 Correct 93 ms 6380 KB Output is correct
15 Correct 536 ms 15668 KB Output is correct
16 Correct 105 ms 6468 KB Output is correct
17 Correct 463 ms 15660 KB Output is correct
18 Correct 338 ms 15168 KB Output is correct
19 Correct 346 ms 15668 KB Output is correct
20 Correct 506 ms 15720 KB Output is correct

Subtask #4
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 2 ms 204 KB Output is correct
3 Incorrect 60 ms 3140 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #5
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Incorrect 1 ms 204 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #6
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Incorrect 1 ms 204 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #7
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Incorrect 1 ms 204 KB Output isn't correct
5 Halted 0 ms 0 KB -