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답안 #153664

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
153664 2019-09-15T06:03:37 Z semiauto Hedgehog Daniyar and Algorithms (IZhO19_sortbooks) C++14
64 / 100
 3000 ms 217148 KB 
#include <bits/stdc++.h>
using namespace std;
int n,m,i,j,l,r,ans,N=1024*1024;
int mas[1000001],par[1000001],val[1000001],hey[3000001],tree[3000001];
pair <int,int> p[1000001][20];
vector <int> v[1000001];
void dfs(int u) {
    int i;
    p[u][0]={par[u],val[u]};
    for (i=1;i<20;i++)
        if (p[p[u][i-1].first][i-1].first)
            p[u][i]={p[p[u][i-1].first][i-1].first,max(p[u][i-1].second,p[p[u][i-1].first][i-1].second)};
    for (i=0;i<(v[u].size());i++)
        dfs(v[u][i]);
}
int solve(int x,int y,int p,int l,int r) {
    if (l>y || x>r)
        return 0;
    if (l>=x && r<=y)
        return tree[p];
    return max(solve(x,y,2*p,l,(l+r)/2),solve(x,y,2*p+1,(l+r)/2+1,r));
}
void build_tree(int p) {
    if (p>=N) {
        if ((p-N+1)<=n)
            tree[p]=mas[p-N+1];
        return;
    }
    build_tree(2*p);
    build_tree(2*p+1);
    tree[p]=max(tree[2*p],tree[2*p+1]);
}
int main() {
    cin>>n>>m;
    for (i=1;i<=n;i++)
        cin>>mas[i];
    build_tree(1);
    for (i=n;i>0;i--) {
        for (;r>0;r--)
            if (mas[hey[r]]>=mas[i])
                break;
        par[i]=hey[r];
        v[hey[r]].push_back(i);
        hey[++r]=i;
    }
    for (i=1;i<=n;i++)
        if (par[i]>(i+1))
            val[i]=mas[i]+solve(i+1+N-1,par[i]-1+N-1,1,N,2*N-1);
    for (i=0;i<(v[0].size());i++)
        dfs(v[0][i]);
    while (cin>>l>>r>>m) {
        if (l==r) {
            cout<<"1"<<endl;
            continue;
        }
        ans=0;
        for (i=19;i>=0;i--)
            if (p[l][i].first && p[l][i].first<=r) {
                ans=max(ans,p[l][i].second);
                l=p[l][i].first;
            }
        if (r>l)
            ans=max(ans,mas[l]+solve(l+1+N-1,r+N-1,1,N,2*N-1));
        if (ans>m)
            cout<<"0"<<endl;
        else
            cout<<"1"<<endl;
    }
}

Compilation message

sortbooks.cpp: In function 'void dfs(int)':
sortbooks.cpp:13:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (i=0;i<(v[u].size());i++)
              ~^~~~~~~~~~~~~~
sortbooks.cpp: In function 'int main()':
sortbooks.cpp:49:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (i=0;i<(v[0].size());i++)
              ~^~~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 35 ms 28024 KB Output is correct
2 Correct 34 ms 28024 KB Output is correct
3 Correct 37 ms 27972 KB Output is correct
4 Correct 35 ms 28024 KB Output is correct
5 Correct 35 ms 28040 KB Output is correct
6 Correct 37 ms 28024 KB Output is correct
7 Correct 37 ms 27996 KB Output is correct
8 Correct 37 ms 28024 KB Output is correct
9 Correct 36 ms 28020 KB Output is correct
10 Correct 37 ms 28152 KB Output is correct

Subtask #2
9.0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 35 ms 28024 KB Output is correct
2 Correct 34 ms 28024 KB Output is correct
3 Correct 37 ms 27972 KB Output is correct
4 Correct 35 ms 28024 KB Output is correct
5 Correct 35 ms 28040 KB Output is correct
6 Correct 37 ms 28024 KB Output is correct
7 Correct 37 ms 27996 KB Output is correct
8 Correct 37 ms 28024 KB Output is correct
9 Correct 36 ms 28020 KB Output is correct
10 Correct 37 ms 28152 KB Output is correct
11 Correct 50 ms 28284 KB Output is correct
12 Correct 55 ms 28920 KB Output is correct
13 Correct 54 ms 28920 KB Output is correct
14 Correct 63 ms 28960 KB Output is correct
15 Correct 70 ms 28920 KB Output is correct
16 Correct 60 ms 29048 KB Output is correct
17 Correct 58 ms 28920 KB Output is correct
18 Correct 59 ms 29048 KB Output is correct

Subtask #3
0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 3045 ms 217148 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 588 ms 47008 KB Output is correct
2 Correct 565 ms 47068 KB Output is correct
3 Correct 633 ms 51756 KB Output is correct
4 Correct 630 ms 51704 KB Output is correct
5 Correct 628 ms 51704 KB Output is correct
6 Correct 550 ms 51296 KB Output is correct
7 Correct 556 ms 51448 KB Output is correct
8 Correct 577 ms 49784 KB Output is correct
9 Correct 431 ms 28428 KB Output is correct
10 Correct 578 ms 50020 KB Output is correct

Subtask #5
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 35 ms 28024 KB Output is correct
2 Correct 34 ms 28024 KB Output is correct
3 Correct 37 ms 27972 KB Output is correct
4 Correct 35 ms 28024 KB Output is correct
5 Correct 35 ms 28040 KB Output is correct
6 Correct 37 ms 28024 KB Output is correct
7 Correct 37 ms 27996 KB Output is correct
8 Correct 37 ms 28024 KB Output is correct
9 Correct 36 ms 28020 KB Output is correct
10 Correct 37 ms 28152 KB Output is correct
11 Correct 50 ms 28284 KB Output is correct
12 Correct 55 ms 28920 KB Output is correct
13 Correct 54 ms 28920 KB Output is correct
14 Correct 63 ms 28960 KB Output is correct
15 Correct 70 ms 28920 KB Output is correct
16 Correct 60 ms 29048 KB Output is correct
17 Correct 58 ms 28920 KB Output is correct
18 Correct 59 ms 29048 KB Output is correct
19 Correct 1327 ms 66332 KB Output is correct
20 Correct 1343 ms 66216 KB Output is correct
21 Correct 1258 ms 66288 KB Output is correct
22 Correct 1296 ms 66304 KB Output is correct
23 Correct 1257 ms 66308 KB Output is correct
24 Correct 1373 ms 75540 KB Output is correct
25 Correct 1406 ms 75524 KB Output is correct
26 Correct 1467 ms 75460 KB Output is correct
27 Correct 1424 ms 75356 KB Output is correct
28 Correct 1454 ms 75440 KB Output is correct
29 Correct 1430 ms 75412 KB Output is correct
30 Correct 1438 ms 75432 KB Output is correct
31 Correct 1514 ms 75472 KB Output is correct
32 Correct 1450 ms 75512 KB Output is correct
33 Correct 1492 ms 75516 KB Output is correct
34 Correct 1230 ms 75488 KB Output is correct
35 Correct 1240 ms 75488 KB Output is correct
36 Correct 1224 ms 75404 KB Output is correct
37 Correct 1223 ms 75424 KB Output is correct
38 Correct 1265 ms 75436 KB Output is correct
39 Correct 1308 ms 72244 KB Output is correct
40 Correct 1131 ms 58308 KB Output is correct
41 Correct 1229 ms 71384 KB Output is correct

Subtask #6
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 35 ms 28024 KB Output is correct
2 Correct 34 ms 28024 KB Output is correct
3 Correct 37 ms 27972 KB Output is correct
4 Correct 35 ms 28024 KB Output is correct
5 Correct 35 ms 28040 KB Output is correct
6 Correct 37 ms 28024 KB Output is correct
7 Correct 37 ms 27996 KB Output is correct
8 Correct 37 ms 28024 KB Output is correct
9 Correct 36 ms 28020 KB Output is correct
10 Correct 37 ms 28152 KB Output is correct
11 Correct 50 ms 28284 KB Output is correct
12 Correct 55 ms 28920 KB Output is correct
13 Correct 54 ms 28920 KB Output is correct
14 Correct 63 ms 28960 KB Output is correct
15 Correct 70 ms 28920 KB Output is correct
16 Correct 60 ms 29048 KB Output is correct
17 Correct 58 ms 28920 KB Output is correct
18 Correct 59 ms 29048 KB Output is correct
19 Execution timed out 3045 ms 217148 KB Time limit exceeded
20 Halted 0 ms 0 KB -