oj.uz

답안 #968813

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
968813 2024-04-24T06:35:32 Z vjudge1 Pyramid Base (IOI08_pyramid_base) C++17
56 / 100
 5000 ms 111200 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],something2[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])
                something2[x]+=w;
            for(auto [x,w]:pref[i])
                if(something2[x])
                    add(1,1,m-k+2,x,something2[x]),
                    something2[x]=0;
        }
        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;
}
int read(){
    int res=0;
    char c=getchar();
    while(c<'0'||c>'9')
        c=getchar();
    while(47<c&&c<58)
        res=res*10+c-48,c=getchar();
    return res;
}
signed main(){
    long long XXX=chrono::steady_clock::now().time_since_epoch().count();
    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<<fixed<<setprecision(10)<<"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:79:20: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   79 |         int mid=l+r+1>>1;
      |                 ~~~^~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 14 ms 41560 KB Output is correct

Subtask #2
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 41564 KB Output is correct

Subtask #3
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 11 ms 41560 KB Output is correct

Subtask #4
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 11 ms 41816 KB Output is correct

Subtask #5
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 24 ms 45916 KB Output is correct

Subtask #6
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 34 ms 52568 KB Output is correct
2 Correct 122 ms 60400 KB Output is correct

Subtask #7
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 117 ms 60408 KB Output is correct
2 Correct 43 ms 52824 KB Output is correct

Subtask #8
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 14 ms 39772 KB Output is correct
2 Correct 40 ms 42116 KB Output is correct
3 Correct 37 ms 42328 KB Output is correct

Subtask #9
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 113 ms 45904 KB Output is correct
2 Correct 186 ms 46896 KB Output is correct
3 Incorrect 167 ms 46872 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #10
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 206 ms 55900 KB Output is correct
2 Incorrect 69 ms 46052 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #11
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 431 ms 67084 KB Output is correct
2 Correct 905 ms 70556 KB Output is correct
3 Correct 115 ms 53200 KB Output is correct

Subtask #12
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 294 ms 56608 KB Output is correct
2 Correct 1231 ms 72416 KB Output is correct
3 Correct 1110 ms 72048 KB Output is correct
4 Correct 1236 ms 72572 KB Output is correct
5 Correct 1289 ms 72612 KB Output is correct
6 Correct 68 ms 50124 KB Output is correct

Subtask #13
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4845 ms 101256 KB Output is correct
2 Incorrect 1060 ms 69632 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #14
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 5021 ms 108232 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 5023 ms 111200 KB Time limit exceeded
2 Halted 0 ms 0 KB -