oj.uz

답안 #968805

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
968805 2024-04-24T06:20:13 Z vjudge1 Pyramid Base (IOI08_pyramid_base) C++17
80 / 100
 5000 ms 110124 KB 
#include<bits/stdc++.h>
using namespace std;
#include<bits/extc++.h>
#pragma GCC optimize(2)
#define N 1<<19
int S[4*N],B[4*N],n,m,p,b,A[N],B2[N],C[N],D[N],W[N],something[2*N];
void reset(int i,int l,int r){
    S[i]=B[i]=0;
    if(l==r) return;
    reset(i*2,l,l+r>>1);
    reset(i*2+1,l+r+2>>1,r);
}
void add(int i,int l,int r,int pos,int x){
    if(l==r)
        return void(S[i]=B[i]+=x);
    if(pos>l+r>>1)
        add(i*2+1,l+r+2>>1,r,pos,x);
    else add(i*2,l,l+r>>1,pos,x);
    S[i]=S[i*2]+S[i*2+1];
    B[i]=min(B[i*2],S[i*2]+B[i*2+1]);
}
vector<pair<int,int>>pref[2*N];
bool check(int k){
    for(int i=0;i<p;i++){
        int a=max(1,A[i]-k+1);
        int b=max(1,B2[i]-k+1);
        pref[a].push_back({b,W[i]});
        if(D[i]<=m-k+1)
            pref[a].push_back({D[i],-W[i]});
        if(C[i]<=n-k+1)
            pref[C[i]].push_back({b,-W[i]}),something[C[i]]=1;
        if(D[i]<=m-k+1&&C[i]<=n-k+1)
            pref[C[i]].push_back({D[i],W[i]});
        something[a]=1;
    }
    reset(1,1,m-k+1);
    int ans=0;
    if(!something[1])
        ans=1;
    else for(int i=1;i<n-k+2;i++){
        if(something[i])
            for(auto [x,w]:pref[i])
                add(1,1,m-k+1,x,w);
        if(B[1]<=b) {
            ans=1;
            break;
        }
    }
    for(int i=1;i<=n-k+2;i++)
        if(something[i])
            pref[i].clear(),
            something[i]=0;
    return ans;
}
signed main(){
    long long XXX=chrono::steady_clock::now().time_since_epoch().count();
    cin.tie(0)->sync_with_stdio(0);
    cin>>n>>m>>b>>p;
    b=min(b,1<<30);
    for(int i=0;i<p;i++)
        cin>>A[i]>>B2[i]>>C[i]>>D[i]>>W[i],C[i]++,D[i]++;
    if(!b) for(int i=0;i<p;i++)
        W[i]=1;
    int l=0,r=min(n,m);
    while(l<r){
        int mid=l+r+1>>1;
        if(check(mid))
            l=mid;
        else
            r=mid-1;
        cerr<<"DONE1\n";
    }
    cout<<l<<'\n';
    long long YYY=chrono::steady_clock::now().time_since_epoch().count();
    cerr<<"Took: "<<(YYY-XXX)/1e9<<'s';
}

Compilation message

pyramid_base.cpp: In function 'void reset(int, int, int)':
pyramid_base.cpp:10:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   10 |     reset(i*2,l,l+r>>1);
      |                 ~^~
pyramid_base.cpp:11:20: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   11 |     reset(i*2+1,l+r+2>>1,r);
      |                 ~~~^~
pyramid_base.cpp: In function 'void add(int, int, int, int, int)':
pyramid_base.cpp:16:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   16 |     if(pos>l+r>>1)
      |            ~^~
pyramid_base.cpp:17:22: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   17 |         add(i*2+1,l+r+2>>1,r,pos,x);
      |                   ~~~^~
pyramid_base.cpp:18:21: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   18 |     else add(i*2,l,l+r>>1,pos,x);
      |                    ~^~
pyramid_base.cpp: In function 'int main()':
pyramid_base.cpp:66:20: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   66 |         int mid=l+r+1>>1;
      |                 ~~~^~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 10 ms 37464 KB Output is correct

Subtask #2
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 8 ms 37468 KB Output is correct

Subtask #3
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 37508 KB Output is correct

Subtask #4
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 11 ms 37724 KB Output is correct

Subtask #5
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 22 ms 40028 KB Output is correct

Subtask #6
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 36 ms 47196 KB Output is correct
2 Correct 138 ms 56252 KB Output is correct

Subtask #7
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 123 ms 56264 KB Output is correct
2 Correct 57 ms 47276 KB Output is correct

Subtask #8
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 14 ms 37724 KB Output is correct
2 Correct 35 ms 38240 KB Output is correct
3 Correct 34 ms 38232 KB Output is correct

Subtask #9
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 114 ms 41968 KB Output is correct
2 Correct 184 ms 42576 KB Output is correct
3 Correct 159 ms 42836 KB Output is correct

Subtask #10
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 239 ms 51916 KB Output is correct
2 Correct 60 ms 44004 KB Output is correct
3 Correct 113 ms 54364 KB Output is correct
4 Correct 465 ms 64388 KB Output is correct

Subtask #11
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 455 ms 63168 KB Output is correct
2 Correct 815 ms 66332 KB Output is correct
3 Correct 263 ms 48984 KB Output is correct

Subtask #12
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 381 ms 52428 KB Output is correct
2 Correct 1120 ms 68328 KB Output is correct
3 Correct 1004 ms 68244 KB Output is correct
4 Correct 1145 ms 68548 KB Output is correct
5 Correct 1157 ms 68300 KB Output is correct
6 Correct 171 ms 48264 KB Output is correct

Subtask #13
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4434 ms 97368 KB Output is correct
2 Correct 846 ms 69788 KB Output is correct

Subtask #14
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 5069 ms 106020 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 5052 ms 110124 KB Time limit exceeded
2 Halted 0 ms 0 KB -