Submission #153692

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
153692	2019-09-15 06:48:38	semiauto	Hedgehog Daniyar and Algorithms (IZhO19_sortbooks)	C++14	100 / 100	2855 ms	262144 KiB

sortbooks

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#include <bits/stdc++.h>
using namespace std;
int n,m,i,j,l,r,ans,N=1024*1024;
int mas[1000001],val[1000001],tree[2048*1024];
pair <int,int> p[1000001][20];
vector <int> v[1000001];
inline int maxi(int a,int b) {
    if (a>b)
        return a;
    return b;
}
void dfs(int u) {
    int i;
    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,maxi(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 maxi(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];
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

sortbooks.cpp: In function 'void dfs(int)':
sortbooks.cpp:17:15: 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:52:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (i=0;i<(v[0].size());i++)
              ~^~~~~~~~~~~~~~
sortbooks.cpp:38:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d",&n,&m);
     ~~~~~^~~~~~~~~~~~~~~
sortbooks.cpp:40:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d",&(mas[i]));
         ~~~~~^~~~~~~~~~~~~~~~
sortbooks.cpp:55:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d %d",&l,&r,&j);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 8 / 8
• Subtask 2: 9 / 9
• Subtask 3: 13 / 13
• Subtask 4: 17 / 17
• Subtask 5: 30 / 30
• Subtask 6: 23 / 23