oj.uz

답안 #914520

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
914520 2024-01-22T09:54:41 Z abcvuitunggio Pyramid Base (IOI08_pyramid_base) C++17
5 / 100
 5000 ms 75472 KB 
#include <bits/stdc++.h>
using namespace std;
const int M=1000001,P=400001;
int m,n,N,b,p,x[P],y[P],u[P],v[P],c[P];
unsigned int st[M*2],sum[M];
void update(int i, int val){
    st[i]+=val;
    if (i<N)
        sum[i]+=val;
}
void update(int l, int r, int val){
    if (l>N)
        return;
    r=min(r,N);
    for (int L=l+N-1,R=r+N;L<R;L>>=1,R>>=1){
        if (L&1)
            update(L++,val);
        if (R&1)
            update(--R,val);
    }
    while (l>1){
        l>>=1;
        st[l]=min(st[l<<1],st[l<<1|1])+sum[l];
    }
    r--;
    while (r>1){
        r>>=1;
        st[r]=min(st[r<<1],st[r<<1|1])+sum[r];
    }
}
void down(int i){
    for (int k=20;k;k--){
        int j=i>>k;
        if (sum[j]){
            update(j<<1,sum[j]);
            update(j<<1|1,sum[j]);
            sum[j]=0;
        }
    }
}
unsigned int get(int l, int r){
    down(l-1);
    down(r-2);
    unsigned int res=3e9;
    for (int L=l+N-1,R=r+N;L<R;L>>=1,R>>=1){
        if (L&1)
            res=min(res,st[L++]);
        if (R&1)
            res=min(res,st[--R]);
    }
    return res;
}
vector <int> ve[M+1];
bool check(int sz){
    N=n-sz+1;
    for (int i=1;i<=m+1;i++)
        ve[i].clear();
    memset(st,0,sizeof(st));
    memset(sum,0,sizeof(sum));
    for (int i=1;i<=p;i++){
        int X=max(x[i]-sz+1,1);
        ve[X].push_back(i);
        ve[u[i]+1].push_back(-i);
    }
    for (int i=1;i<=m-sz+1;i++){
        for (int j:ve[i])
            update(max(y[abs(j)]-sz+1,1),v[abs(j)],c[abs(j)]*(j<0?-1:1));
        if (get(1,N)<=b)
            return true;
    }
    return false;
}
int main(){
    ios_base::sync_with_stdio(NULL);cin.tie(nullptr);
    cin >> m >> n >> b >> p;
    for (int i=1;i<=p;i++)
        cin >> x[i] >> y[i] >> u[i] >> v[i] >> c[i];
    int l=1,r=min(m,n),kq=0;
    while (l<=r){
        int mid=(l+r)>>1;
        if (check(mid)){
            kq=mid;
            l=mid+1;
        }
        else
            r=mid-1;
    }
    cout << kq;
}

Compilation message

pyramid_base.cpp: In function 'bool check(int)':
pyramid_base.cpp:68:21: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare]
   68 |         if (get(1,N)<=b)
      |             ~~~~~~~~^~~

Subtask #1
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 12 ms 41560 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 12 ms 41560 KB Output is correct

Subtask #3
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 15 ms 41668 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 17 ms 41820 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 86 ms 42176 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 211 ms 42068 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 961 ms 42500 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 19 ms 41816 KB Output is correct
2 Correct 42 ms 42072 KB Output is correct
3 Incorrect 43 ms 42032 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #9
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 130 ms 43700 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #10
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 380 ms 46452 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #11
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 723 ms 48928 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #12
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 496 ms 47072 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #13
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 4633 ms 73156 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #14
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 5086 ms 74848 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 5046 ms 75472 KB Time limit exceeded
2 Halted 0 ms 0 KB -