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Submission #390965

# Submission time Handle Problem Language Result Execution time Memory
390965 2021-04-17T12:52:17 Z IloveN Pyramid Base (IOI08_pyramid_base) C++14
0 / 100
 649 ms 141756 KB 
#include<bits/stdc++.h>

using namespace std;
#define ll long long
#define pii pair<int,int>
#define pll pair<ll,ll>
#define fi first
#define se second
#define mp make_pair
#define pb push_back
#define eb emplace_back
#define all(vr) vr.begin(),vr.end()
#define vi vector<int>
#define vll vector<ll>
#define ui unsigned int
const int N=1e6+10;

struct segment_tree
{
    ui it[N*4],lazy[N*4];
    int n;

    void down(int id)
    {
        ui x=lazy[id];
        lazy[id]=0;
        it[id*2]+=x;
        lazy[id*2]+=x;
        it[id*2+1]+=x;
        lazy[id*2+1]+=x;
    }

    void update(int id,int l,int r,int u,int v,ui x)
    {
        if (l>v || r<u) return;
        if (u<=l && r<=v)
        {
            it[id]+=x;
            lazy[id]+=x;
            return;
        }
        down(id);
        int mid=(l+r)/2;
        update(id*2,l,mid,u,v,x);
        update(id*2+1,mid+1,r,u,v,x);
        it[id]=min(it[id*2],it[id*2+1]);
    }

    void init(int x)
    {
        n=x;
        memset(it,0,sizeof(it));
        memset(lazy,0,sizeof(lazy));
    }

    void upd(int u,int v,ui x) { update(1,1,n,u,v,x);}

    ll get() { return it[1];}
} seg;

struct obs{int x1,x2,y1,y2,c;};
obs a[N];
int n,m,B,p;

struct event{int l,r,x;};
vector<event> vt[N];

bool check(int l)
{
    //for (int i=1;i<=m;i++) vt[i].clear();
    for (int i=1;i<=p;i++)
    {
        int x1=max(a[i].x1-l+1,1);
        int y1=max(a[i].y1-l+1,1);
        int x2=min(a[i].x2,m-l+1);
        int y2=min(a[i].y2,n-l+1);
        if (x1>x2 || y1>y2) continue;
        int c=a[i].c;
        vt[x1].pb({y1,y2,c});
        vt[x2+1].pb({y1,y2,-c});
    }
    //seg.init(n-l+1);
    bool ans=false;
    for (int i=1;i<=m-l+1;i++)
    {
        for (event e : vt[i]) seg.upd(e.l,e.r,e.x);
        if (seg.get()<=B) ans=true;
    }
    for (event e : vt[m-l]) seg.upd(e.l,e.r,e.x);
    for (int i=1;i<=m-l;i++) vt[i].clear();
    return ans;
}

int main()
{
    //freopen("ss.inp","r",stdin);
    ios::sync_with_stdio(false);
    cin.tie(0);
    cin>>m>>n>>B>>p;
    for (int i=1;i<=p;i++) cin>>a[i].x1>>a[i].y1>>a[i].x2>>a[i].y2>>a[i].c;
    int l=1,r=min(m,n),ans=0;
    while (l<=r)
    {
        int mid=(l+r)/2;
        if (check(mid)) ans=mid,l=mid+1;
        else r=mid-1;
    }
    cout<<ans;
    return 0;
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 15 ms 23756 KB Output isn't correct

Subtask #2
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 15 ms 23820 KB Output isn't correct

Subtask #3
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 16 ms 23892 KB Output isn't correct

Subtask #4
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 16 ms 24044 KB Output isn't correct

Subtask #5
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 19 ms 24016 KB Output isn't correct

Subtask #6
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 23 ms 24072 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 24 ms 24148 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 23 ms 25036 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #9
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 34 ms 27820 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #10
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 52 ms 30196 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #11
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 57 ms 31536 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #12
0 / 7.0

# Verdict Execution time Memory Grader output
1 Incorrect 69 ms 32956 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #13
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 362 ms 84128 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #14
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 527 ms 115408 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #15
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 649 ms 141756 KB Output isn't correct
2 Halted 0 ms 0 KB -