Submission #948243

#	Time	Username	Problem	Language	Result	Execution time	Memory
948243		modwwe	Palembang Bridges (APIO15_bridge)	C++17	100 / 100	95 ms	6848 KiB

bridge

#pragma GCC optimize("Ofast,unroll-loops")
#pragma GCC target("avx,avx2,sse,sse2")
#include<bits/stdc++.h>
#define int long long
#define down cout<<'\n';
#define NHP     ios_base::sync_with_stdio(0);cout.tie(0);cin.tie(0);
#define modwwe  int t;cin>>t; while(t--)
#define bit(i,j) (i>>j&1)
#define sobit(a) __builtin_popcountll(a)
#define task "vrtic"
#define fin(x) freopen(x".inp","r",stdin)
#define fou(x) freopen(x".out","w",stdout)
#define pb push_back
#define checktime   cerr << (double)clock() / CLOCKS_PER_SEC * 1000  << " ms";
using namespace std;
void phongbeo();
const int mod2=1e9+7;
const int  mod1=998244353;
struct ib
{
    int a;
    int b;
};
struct icd
{
    int a,b;
};
struct ic
{
    int a,b,c;
};
struct id
{
    int a,b,c,d;
};
int n,m,s2,s4,s3,sf,k,r,mid,s5,s6,mx,s7,s8,s9,mx2,res,dem2=0,dem=0,l;
int  i,s10,s12;
int el=29;
main()
{
//#ifndef ONLINE_JUDGE
    //  fin(task),fou(task);
//#endif
    NHP
//modwwe
    //  cin>>res;
    phongbeo(),down
    checktime
}
int dp[100001];
ib a[100001];
struct cmp{
bool operator()(int a,int b)
{
    return a>b;
}
};
struct cmp2{
bool operator()(int a,int b)
{
    return a<b;
}
};
priority_queue<int,vector<int>,cmp2>p;
 priority_queue<int,vector<int>,cmp>p2;
void get()
{
      if(p.top()>p2.top())
      { s5=p.top();
      s6=p2.top();
          s2=s2+s5*2;
      s2=s2-s6*2;
      s3+=s5;
      s3-=s6;
      s4+=s6;
      s4-=s5;
            p2.push(s5);
            p.push(s6);
      p2.pop();
      p.pop();
      }
}
bool cmp3(ib a,ib b)
{
    return a.a+a.b<b.a+b.b;
}
void phongbeo()
{
 cin>>k>>n;
  for(int i=1;i<=n;i++)
  {
    string ss,sx;
     cin>>ss>>l>>sx>>r;
      if(ss==sx)
      {
          s8+=abs(r-l);
       continue;
      }
      a[++dem]={l,r};
  }
  sort(a+1,a+1+dem,cmp3);
   for(int i=1;i<=dem;i++)
   {
       s2+=abs(a[i].a-a[i].b);
       p.push(min(a[i].b,a[i].a));
       s3+=max(a[i].a,a[i].b);
       s4+=min(a[i].a,a[i].b);
       p2.push(max(a[i].b,a[i].a));
       get();
       dp[i]=s2;
   }
   if(k==1){
   cout<<s2+dem+s8;
   exit(0);}
   else
   {
        while(!p.empty())
        {
            p.pop();
        }

        while(!p2.empty())
        {
            p2.pop();
        }
        s2=0;
        s7=dp[dem];
        for(int i=dem;i>=1;--i)
        {       s2+=abs(a[i].a-a[i].b);
                   p.push(min(a[i].b,a[i].a));
                   p2.push(max(a[i].b,a[i].a));
get();
s7=min(s7,s2+dp[i-1]);
        }
        cout<<s7+dem+s8;
   }
}

Compilation message (stderr)

bridge.cpp:39:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   39 | main()
      | ^~~~

• Subtask 1: 8 / 8
• Subtask 2: 14 / 14
• Subtask 3: 9 / 9
• Subtask 4: 32 / 32
• Subtask 5: 37 / 37