Submission #857496

#	Time	Username	Problem	Language	Result	Execution time	Memory
857496		sunwukong123	Rail (IOI14_rail)	C++14	30 / 100	45 ms	776 KiB

rail

#include "rail.h"
#include <bits/stdc++.h>
using namespace std;
void debug_out() {cerr<<endl;}
template <typename Head, typename... Tail>
void debug_out(Head _H, Tail... _T) {cerr<<" "<<to_string(_H);debug_out(_T...);}
#define debug(...) cerr<<"["<<#__VA_ARGS__<<"]:",debug_out(__VA_ARGS__)
const int MAXN = 5005;
const int inf=1000000500ll;
const int MOD = (int)1e9 + 7;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
typedef pair<int,int> pi; 
vector<pi> vec;
int D[MAXN];
void findLocation(int n, int first, int loc[], int stype[])
{
	for(int i=1;i<n;i++){
		D[i]=getDistance(0,i);
		vec.push_back({D[i],i});
	}
	sort(vec.begin(),vec.end());
	int L=-1,R=-1;

	R=vec[0].second;
	loc[vec[0].second]=vec[0].first;
	stype[0]=1;
	stype[vec[0].second]=2;
	for(int i=1;i<(int)vec.size();i++){
		int d1=getDistance(vec[i].second, vec[0].second);
		int d2=inf;
		//if(L!=-1)d2=getDistance(vec[i].second, L);
		if(vec[i].first < d1){
			stype[vec[i].second]=2;
			R=vec[i].second;
			loc[vec[i].second]=vec[i].first;
		} else{
			if(d1<d2){
				stype[vec[i].second]=1;
				loc[vec[i].second]=loc[vec[0].second]-d1;
				if(loc[vec[i].second]<0)L=vec[i].second;
			} else{
				stype[vec[i].second]=2;
				loc[vec[i].second]=loc[L]+d2;
			}
		}
	}
	for(int i=0;i<n;i++){
		loc[i]+=first;
	}
	/*
	for(int i=0;i<n;i++){
		cout<<stype[i]<<" ";
	}
	cout<<"\n";
	for(int i=0;i<n;i++){
		cout<<loc[i]<<" ";
	}*/
}

Compilation message (stderr)

rail.cpp: In function 'void findLocation(int, int, int*, int*)':
rail.cpp:22:11: warning: variable 'R' set but not used [-Wunused-but-set-variable]
   22 |  int L=-1,R=-1;
      |           ^

• Subtask 1: 8 / 8
• Subtask 2: 22 / 22
• Subtask 3: 0 / 26
• Subtask 4: 0 / 44