oj.uz

Submission #1016664

# Submission time Handle Problem Language Result Execution time Memory
1016664 2024-07-08T10:11:30 Z serkanrashid Wall (IOI14_wall) C++14
0 / 100
 114 ms 14968 KB 
#include "wall.h"
#include <bits/stdc++.h>

using namespace std;

struct Node
{
    int ch,ty;
    Node()
    {
        ch = 0;
        ty = 0;
    };
    Node(int chi, int ti)
    {
        ch = chi;
        ty = ti;
    }
};

const int maxn = 2e5+5;

int type,ql,qr,val;
Node lazy[4*maxn];
int tree[maxn];

void push_lazy(int v, int l, int r)
{
    if(lazy[v].ty==0) return;

    ///cout << v << " " << l << " " << r << endl;
    ///cout << lazy[v].ch << " " << lazy[v].ty << endl;
    if(l!=r)
    {
        if(lazy[v].ty==1)
        {
            lazy[v*2+0].ch = max(lazy[v*2+0].ch,lazy[v].ch);
            lazy[v*2+1].ch = max(lazy[v*2+1].ch,lazy[v].ch);
        }
        else
        {
            if(lazy[v*2+0].ch==-1) lazy[v*2+0].ch = lazy[v].ch;
            else lazy[v*2+0].ch = min(lazy[v*2+0].ch,lazy[v].ch);
            if(lazy[v*2+1].ch==-1) lazy[v*2+1].ch = lazy[v].ch;
            else lazy[v*2+1].ch = min(lazy[v*2+1].ch,lazy[v].ch);
        }
    }
    else
    {
        if(lazy[v].ty==1) tree[r] = max(tree[r],lazy[v].ch);
        else tree[r] = min(tree[r],lazy[v].ch);
    }

    lazy[v].ch = -1;
    lazy[v].ty = 0;
}

void query(int v, int l, int r)
{
    ///cout << "query" << endl;
    push_lazy(v,l,r);
    if(l==r) return;
    int mid = (l+r)/2;
    query(v*2+0,l,mid+0);
    query(v*2+1,mid+1,r);
}

void update(int v, int l, int r)
{
    push_lazy(v,l,r);
    if(r<ql||qr<l||l>r) return;
    if(ql<=l&&r<=qr)
    {
        lazy[v] = {val,type};
        push_lazy(v,l,r);
        ///
        return;
    }
    int mid = (l+r)/2;
    update(v*2+0,l,mid+0);
    update(v*2+1,mid+1,r);
}

void buildWall(int n, int k, int op[], int left[], int right[], int height[], int finalHeight[])
{
    memset(lazy,-1,sizeof(lazy));
    bool f = true;
    for(int i = 0; i < k; i++)
    {
        if(f&&op[i]==2)
        {
            query(1,0,n-1);
            f = false;
        }
        type = op[i];
        ql = left[i];
        qr = right[i];
        val = height[i];
        update(1,0,n-1);
    }
    query(1,0,n-1);
    for(int i = 0; i < n; i++) finalHeight[i] = tree[i];
}

Compilation message

wall.cpp: In function 'void buildWall(int, int, int*, int*, int*, int*, int*)':
wall.cpp:86:32: warning: 'void* memset(void*, int, size_t)' writing to an object of non-trivial type 'struct Node'; use assignment instead [-Wclass-memaccess]
   86 |     memset(lazy,-1,sizeof(lazy));
      |                                ^
wall.cpp:6:8: note: 'struct Node' declared here
    6 | struct Node
      |        ^~~~

Subtask #1
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 7260 KB Output is correct
2 Correct 3 ms 7260 KB Output is correct
3 Incorrect 2 ms 7260 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #2
0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 7260 KB Output is correct
2 Correct 80 ms 14968 KB Output is correct
3 Incorrect 114 ms 10676 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #3
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7256 KB Output is correct
2 Correct 2 ms 7260 KB Output is correct
3 Incorrect 2 ms 7256 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #4
0 / 39.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 7256 KB Output is correct
2 Correct 2 ms 7260 KB Output is correct
3 Incorrect 2 ms 7260 KB Output isn't correct
4 Halted 0 ms 0 KB -