Submission #787117

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
787117	2023-07-18 20:35:47	alexander707070	Radio Towers (IOI22_towers)	C++17	56 / 100	4022 ms	7128 KiB

towers

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#include<bits/stdc++.h>
#define MAXN 100007
using namespace std;
 
int n,h[MAXN],maxh,num,delta,from[MAXN],to[MAXN],border;
int dp[MAXN],ans,pref[MAXN],se,te;
 
pair<int,int> tree[4*MAXN];
int mins[4*MAXN];
 
pair<int,int> combine(pair<int,int> fr,pair<int,int> sc){
    if(fr.first>sc.first)return fr;
    return sc;
}
 
void build(int v,int l,int r){
    if(l==r){
        tree[v]={h[l],l};
        mins[v]=h[l];
    }else{
        int tt=(l+r)/2;
        build(2*v,l,tt);
        build(2*v+1,tt+1,r);
        tree[v]=combine(tree[2*v],tree[2*v+1]);
        mins[v]=min(mins[2*v],mins[2*v+1]);
    }
}
 
pair<int,int> best(int v,int l,int r,int ll,int rr){
    if(ll>rr)return {-1,0};
 
 
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Compilation message (stderr)

towers.cpp: In function 'int max_towers(int, int, int)':
towers.cpp:155:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  155 |         if(se==poss.size())se=R+1;
      |            ~~^~~~~~~~~~~~~
towers.cpp:172:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  172 |         if(r!=lt.size() and to[lt[r]]<se){
      |            ~^~~~~~~~~~~

• Subtask 1: 0 / 4
• Subtask 2: 11 / 11
• Subtask 3: 12 / 12
• Subtask 4: 14 / 14
• Subtask 5: 0 / 17
• Subtask 6: 19 / 19
• Subtask 7: 0 / 23