Submission #731609

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
731609	2023-04-27 16:27:32	PoonYaPat	송신탑 (IOI22_towers)	C++17	17 / 100	1529 ms	59508 KiB

towers

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#include "towers.h"
#include <bits/stdc++.h>
using namespace std;
typedef pair<int,int> pii;
int R[100010],L[100010],h[100010],n,s[1<<18];
vector<pii> v;
struct ss {
    int mmin,mmax,sl,sr;
} sg[1<<18]; // i<j -> sl = j-i, sr=i-j
ss merge(ss l, ss r) {
    if (l.mmin==-1 && r.mmin==-1) return {-1,0,0,0};
    if (l.mmin==-1) return r;
    if (r.mmin==-1) return l;
    ss ans;
    ans.mmax=max(l.mmax,r.mmax);
    ans.mmin=min(l.mmin,r.mmin);
    ans.sl=max({l.sl,r.sl,r.mmax-l.mmin});
    ans.sr=max({l.sr,r.sr,l.mmax-r.mmin});
    return ans;
}
void build_sg(int l, int r, int idx) {
    if (l==r) sg[idx]={h[l],h[l],0,0};
    else {
        int mid=(l+r)/2;
        build_sg(l,mid,2*idx);
 
 
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Compilation message (stderr)

towers.cpp: In constructor 'node::node(node*, node*)':
towers.cpp:45:15: warning: 'node::r' will be initialized after [-Wreorder]
   45 |     node *l, *r;
      |               ^
towers.cpp:45:11: warning:   'node* node::l' [-Wreorder]
   45 |     node *l, *r;
      |           ^
towers.cpp:51:5: warning:   when initialized here [-Wreorder]
   51 |     node(node *L, node *R) : mmin(INT_MAX), mmax(-INT_MAX), cnt(0) , r(R), l(L) {
      |     ^~~~
towers.cpp: In function 'void init(int, std::vector<int>)':
towers.cpp:149:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  149 |     for (int i=0; i<v.size(); ++i) {
      |                   ~^~~~~~~~~

• Subtask 1: 0 / 4
• Subtask 2: 0 / 11
• Subtask 3: 0 / 12
• Subtask 4: 0 / 14
• Subtask 5: 17 / 17
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• Subtask 7: 0 / 23