#include <bits/stdc++.h>
#define all(v) v.begin(),v.end()
#define eb emplace_back
using namespace std;
using ll=long long;
using P=pair<int,int>;
using C=complex<double>;
void chmax(ll &a,ll b){a=max(a,b);}
void chmin(ll &a,ll b){a=min(a,b);}
struct segtree{
int n;
vector<ll> dat;
segtree(int n):n(n){
dat.resize(n);
}
void upd(int k,ll x){
dat[k]=x;
}
ll get(){
ll sum=0,mi=0,res=0;
for(int i=0;i<n;i++){
sum+=dat[i];
chmax(res,sum-mi);
chmin(mi,sum);
}
return res;
}
};
int main(){
ios::sync_with_stdio(0);
cin.tie(0);
int n;cin>>n;
assert(n<=100);
vector<double> x(n),y(n);
vector<ll> w(n);
vector<pair<double,P>> v;
vector<P> ps(n);
for(int i=0;i<n;i++){
cin>>x[i]>>y[i]>>w[i];
ps[i].first=y[i];
ps[i].second=i;
}
for(int i=0;i<n;i++){
for(int j=0;j<n;j++){
if(i==j)continue;
double t=atan2(y[j]-y[i],x[j]-x[i]);
if(t>=0){
v.eb(t,P(i,j));
}
}
}
sort(all(v));
sort(all(ps));
reverse(all(ps));
segtree seg(n);
vector<int> pos(n);
for(int i=0;i<n;i++){
seg.upd(i,w[ps[i].second]);
pos[ps[i].second]=i;
}
ll res=seg.get();
for(int i=0;i<v.size();i++){
int l=v[i].second.first,r=v[i].second.second;
swap(pos[l],pos[r]);
seg.upd(pos[l],w[l]);
seg.upd(pos[r],w[r]);
chmax(res,seg.get());
}
cout<<res<<'\n';
}
Compilation message
bulldozer.cpp: In function 'int main()':
bulldozer.cpp:62:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i=0;i<v.size();i++){
~^~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
8 ms |
760 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
504 KB |
Output is correct |
| 2 |
Correct |
7 ms |
504 KB |
Output is correct |
| 3 |
Correct |
8 ms |
504 KB |
Output is correct |
| 4 |
Correct |
8 ms |
504 KB |
Output is correct |
| 5 |
Correct |
7 ms |
632 KB |
Output is correct |
| 6 |
Correct |
7 ms |
504 KB |
Output is correct |
| 7 |
Correct |
6 ms |
548 KB |
Output is correct |
| 8 |
Correct |
7 ms |
504 KB |
Output is correct |
| 9 |
Correct |
8 ms |
504 KB |
Output is correct |
| 10 |
Correct |
7 ms |
508 KB |
Output is correct |
| 11 |
Correct |
5 ms |
376 KB |
Output is correct |
| 12 |
Correct |
5 ms |
376 KB |
Output is correct |
| 13 |
Correct |
5 ms |
376 KB |
Output is correct |
| 14 |
Correct |
5 ms |
376 KB |
Output is correct |
| 15 |
Correct |
5 ms |
376 KB |
Output is correct |
| 16 |
Correct |
5 ms |
376 KB |
Output is correct |
| 17 |
Correct |
5 ms |
376 KB |
Output is correct |
| 18 |
Correct |
5 ms |
376 KB |
Output is correct |
| 19 |
Correct |
5 ms |
376 KB |
Output is correct |
| 20 |
Correct |
5 ms |
376 KB |
Output is correct |
| 21 |
Correct |
7 ms |
504 KB |
Output is correct |
| 22 |
Correct |
7 ms |
504 KB |
Output is correct |
| 23 |
Correct |
7 ms |
504 KB |
Output is correct |
| 24 |
Correct |
7 ms |
508 KB |
Output is correct |
| 25 |
Correct |
7 ms |
504 KB |
Output is correct |
| 26 |
Correct |
7 ms |
632 KB |
Output is correct |
| 27 |
Correct |
7 ms |
504 KB |
Output is correct |
| 28 |
Correct |
7 ms |
504 KB |
Output is correct |
| 29 |
Correct |
7 ms |
504 KB |
Output is correct |
| 30 |
Correct |
7 ms |
504 KB |
Output is correct |
| 31 |
Correct |
7 ms |
504 KB |
Output is correct |
| 32 |
Correct |
6 ms |
504 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
504 KB |
Output is correct |
| 2 |
Correct |
7 ms |
504 KB |
Output is correct |
| 3 |
Correct |
8 ms |
504 KB |
Output is correct |
| 4 |
Correct |
8 ms |
504 KB |
Output is correct |
| 5 |
Correct |
7 ms |
632 KB |
Output is correct |
| 6 |
Correct |
7 ms |
504 KB |
Output is correct |
| 7 |
Correct |
6 ms |
548 KB |
Output is correct |
| 8 |
Correct |
7 ms |
504 KB |
Output is correct |
| 9 |
Correct |
8 ms |
504 KB |
Output is correct |
| 10 |
Correct |
7 ms |
508 KB |
Output is correct |
| 11 |
Correct |
5 ms |
376 KB |
Output is correct |
| 12 |
Correct |
5 ms |
376 KB |
Output is correct |
| 13 |
Correct |
5 ms |
376 KB |
Output is correct |
| 14 |
Correct |
5 ms |
376 KB |
Output is correct |
| 15 |
Correct |
5 ms |
376 KB |
Output is correct |
| 16 |
Correct |
5 ms |
376 KB |
Output is correct |
| 17 |
Correct |
5 ms |
376 KB |
Output is correct |
| 18 |
Correct |
5 ms |
376 KB |
Output is correct |
| 19 |
Correct |
5 ms |
376 KB |
Output is correct |
| 20 |
Correct |
5 ms |
376 KB |
Output is correct |
| 21 |
Correct |
7 ms |
504 KB |
Output is correct |
| 22 |
Correct |
7 ms |
504 KB |
Output is correct |
| 23 |
Correct |
7 ms |
504 KB |
Output is correct |
| 24 |
Correct |
7 ms |
508 KB |
Output is correct |
| 25 |
Correct |
7 ms |
504 KB |
Output is correct |
| 26 |
Correct |
7 ms |
632 KB |
Output is correct |
| 27 |
Correct |
7 ms |
504 KB |
Output is correct |
| 28 |
Correct |
7 ms |
504 KB |
Output is correct |
| 29 |
Correct |
7 ms |
504 KB |
Output is correct |
| 30 |
Correct |
7 ms |
504 KB |
Output is correct |
| 31 |
Correct |
7 ms |
504 KB |
Output is correct |
| 32 |
Correct |
6 ms |
504 KB |
Output is correct |
| 33 |
Runtime error |
5 ms |
632 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 34 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
504 KB |
Output is correct |
| 2 |
Correct |
7 ms |
504 KB |
Output is correct |
| 3 |
Correct |
8 ms |
504 KB |
Output is correct |
| 4 |
Correct |
8 ms |
504 KB |
Output is correct |
| 5 |
Correct |
7 ms |
632 KB |
Output is correct |
| 6 |
Correct |
7 ms |
504 KB |
Output is correct |
| 7 |
Correct |
6 ms |
548 KB |
Output is correct |
| 8 |
Correct |
7 ms |
504 KB |
Output is correct |
| 9 |
Correct |
8 ms |
504 KB |
Output is correct |
| 10 |
Correct |
7 ms |
508 KB |
Output is correct |
| 11 |
Correct |
5 ms |
376 KB |
Output is correct |
| 12 |
Correct |
5 ms |
376 KB |
Output is correct |
| 13 |
Correct |
5 ms |
376 KB |
Output is correct |
| 14 |
Correct |
5 ms |
376 KB |
Output is correct |
| 15 |
Correct |
5 ms |
376 KB |
Output is correct |
| 16 |
Correct |
5 ms |
376 KB |
Output is correct |
| 17 |
Correct |
5 ms |
376 KB |
Output is correct |
| 18 |
Correct |
5 ms |
376 KB |
Output is correct |
| 19 |
Correct |
5 ms |
376 KB |
Output is correct |
| 20 |
Correct |
5 ms |
376 KB |
Output is correct |
| 21 |
Correct |
7 ms |
504 KB |
Output is correct |
| 22 |
Correct |
7 ms |
504 KB |
Output is correct |
| 23 |
Correct |
7 ms |
504 KB |
Output is correct |
| 24 |
Correct |
7 ms |
508 KB |
Output is correct |
| 25 |
Correct |
7 ms |
504 KB |
Output is correct |
| 26 |
Correct |
7 ms |
632 KB |
Output is correct |
| 27 |
Correct |
7 ms |
504 KB |
Output is correct |
| 28 |
Correct |
7 ms |
504 KB |
Output is correct |
| 29 |
Correct |
7 ms |
504 KB |
Output is correct |
| 30 |
Correct |
7 ms |
504 KB |
Output is correct |
| 31 |
Correct |
7 ms |
504 KB |
Output is correct |
| 32 |
Correct |
6 ms |
504 KB |
Output is correct |
| 33 |
Runtime error |
5 ms |
632 KB |
Execution killed with signal 11 (could be triggered by violating memory limits) |
| 34 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
8 ms |
760 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
