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답안 #391091

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
391091 2021-04-17T20:20:44 Z IloveN Pyramid Base (IOI08_pyramid_base) C++14
80 / 100
 5000 ms 92648 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
{
    int t[N*2],d[N*2],n;

    void apply(int p, int value) {
      t[p] += value;
      d[p] += value;
    }

    void build(int p) {
      while (p > 1) p >>= 1, t[p] = min(t[p<<1], t[p<<1|1]) + d[p];
    }

    void upd(int l, int r, int value) {
      l += n - 1, r += n;
      int l0 = l, r0 = r;
      for (; l < r; l >>= 1, r >>= 1) {
        if (l&1) apply(l++, value);
        if (r&1) apply(--r, value);
      }
      build(l0);
      build(r0 - 1);
    }

    int get() { return t[1];}

    void init(int x)
    {
        n=x;
        memset(t,0,sizeof(t));
        memset(d,0,sizeof(d));
    }
} 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);
    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) return true;
    }
    return false;
}

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,a[i].c=min(a[i].c,B+1);
    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
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 30 ms 39372 KB Output is correct

Subtask #2
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 29 ms 39476 KB Output is correct

Subtask #3
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 40 ms 39492 KB Output is correct

Subtask #4
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 50 ms 39576 KB Output is correct

Subtask #5
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 73 ms 39840 KB Output is correct

Subtask #6
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 117 ms 39952 KB Output is correct
2 Correct 171 ms 39980 KB Output is correct

Subtask #7
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 173 ms 40096 KB Output is correct
2 Correct 129 ms 39840 KB Output is correct

Subtask #8
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 56 ms 40600 KB Output is correct
2 Correct 80 ms 40056 KB Output is correct
3 Correct 73 ms 40184 KB Output is correct

Subtask #9
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 177 ms 43076 KB Output is correct
2 Correct 267 ms 42852 KB Output is correct
3 Correct 226 ms 43220 KB Output is correct

Subtask #10
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 314 ms 47320 KB Output is correct
2 Correct 115 ms 44356 KB Output is correct
3 Correct 131 ms 42184 KB Output is correct
4 Correct 502 ms 49424 KB Output is correct

Subtask #11
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 549 ms 49912 KB Output is correct
2 Correct 831 ms 51552 KB Output is correct
3 Correct 255 ms 47276 KB Output is correct

Subtask #12
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 436 ms 50160 KB Output is correct
2 Correct 1069 ms 53792 KB Output is correct
3 Correct 1010 ms 53372 KB Output is correct
4 Correct 1087 ms 53724 KB Output is correct
5 Correct 1100 ms 53784 KB Output is correct
6 Correct 234 ms 48224 KB Output is correct

Subtask #13
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4861 ms 80312 KB Output is correct
2 Correct 1430 ms 79748 KB Output is correct

Subtask #14
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 5069 ms 87244 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #15
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 5037 ms 92648 KB Time limit exceeded
2 Halted 0 ms 0 KB -