Submission #283274

#	Time	Username	Problem	Language	Result	Execution time	Memory
283274		davi_bart	Wiring (IOI17_wiring)	C++14	7 / 100	1106 ms	148688 KiB

wiring

#include <bits/stdc++.h>
#include <wiring.h>
using namespace std;
#define ll long long
//#define int ll
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
vector<int> x, y;
map<int,bool> vis[100010];
map<int,ll> memo[100010];
ll sol(int a,int b){
  if(a==x.size() && b==y.size())return 0;
  if(vis[a][b])return memo[a][b];
  vis[a][b]=1;
  if(a==x.size()){
    ll t=0;
    for(int i=b;i<y.size();i++)t+=abs(y[i]-x.back());
    return memo[a][b]=t;
  }
  if(b==y.size()){
    ll t=0;
    for(int i=a;i<x.size();i++)t+=abs(x[i]-y.back());
    return memo[a][b]=t;
  }
  ll best=1e16;
  best=min(best,sol(a+1,b+1)+abs(x[a]-y[b]));
  if(a>0)best=min(best,sol(a,b+1)+abs(x[a-1]-y[b]));
  if(b>0)best=min(best,sol(a+1,b)+abs(x[a]-y[b-1]));
  return memo[a][b]=best;
}
long long min_total_length(std::vector<int> r, std::vector<int> b) {
	x=r;y=b;
  return sol(0,0);
}

Compilation message (stderr)

wiring.cpp: In function 'long long int sol(int, int)':
wiring.cpp:11:7: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   11 |   if(a==x.size() && b==y.size())return 0;
      |      ~^~~~~~~~~~
wiring.cpp:11:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   11 |   if(a==x.size() && b==y.size())return 0;
      |                     ~^~~~~~~~~~
wiring.cpp:14:7: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   14 |   if(a==x.size()){
      |      ~^~~~~~~~~~
wiring.cpp:16:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   16 |     for(int i=b;i<y.size();i++)t+=abs(y[i]-x.back());
      |                 ~^~~~~~~~~
wiring.cpp:19:7: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |   if(b==y.size()){
      |      ~^~~~~~~~~~
wiring.cpp:21:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |     for(int i=a;i<x.size();i++)t+=abs(x[i]-y.back());
      |                 ~^~~~~~~~~

• Subtask 1: 7 / 7
• Subtask 2: 0 / 13
• Subtask 3: 0 / 10
• Subtask 4: 0 / 25
• Subtask 5: 0 / 45