oj.uz

Submission #149075

# Submission time Handle Problem Language Result Execution time Memory
149075 2019-09-01T05:42:21 Z Dopatii(#3751, bogdan10bos, Gioto, Bodo171) Organizing the Best Squad (FXCUP4_squad) C++17
19 / 100
 3000 ms 245240 KB 
#include "squad.h"
#include <bits/stdc++.h>
using namespace std;
const int nmax=300005;
const int magic=39;
struct line
{
    long long a,b;
    long long ev(long long X,long long Y)
    {
        return (1LL*this->a*X+1LL*this->b*Y);
    }
};
struct srt
{
    int a,b,ind;

}atac[nmax],apar[nmax];
bool comp(srt unu,srt doi)
{
    if(unu.a==doi.a) return unu.b<doi.b;
    return unu.a<doi.a;
}
long double a1,a2,b1,b2;
int lg[nmax];
long double in(line unu,line doi)
{
    a1=unu.a,a2=doi.a,b1=unu.b,b2=doi.b;
    return (b2-b1)/(a1-a2);
}
struct CHT
{
    int u;
    line st[nmax];
    int cb(long double val)
    {
        int ret=0;
        if(u==1)
            return 1;
        for(int pu=lg[u]; pu>=0; pu--)
            if(ret+(1<<pu)<u&&in(st[ret+(1<<pu)],st[ret+(1<<pu)+1])<val)
                ret+=(1<<pu);
        ret++;
        return ret;
    }
    void ins(line dr)
    {
        while(u>=1&&st[u].a==dr.a&&st[u].b<dr.b)
            u--;
        while(u>=2&&in(st[u-1],st[u])>in(st[u-1],dr))
            u--;
        u++;
        st[u]=dr;
    }
}Aa,Dd;
mt19937 gen(chrono::high_resolution_clock::now().time_since_epoch().count());
int n,i;
struct bulaneala
{
    CHT a[2];
    int wh[nmax];
    long double r1,r2;
    int p1,p2;
    void ini(int B,int what)
    {
        int sum=0;
        for(i=0;i<n;i++)
        {
            wh[i]=(((i&(1<<B))!=0)^what);
            sum+=wh[i];
        }
        if(sum==0||sum==n)
        {
            int poz=gen()%n;
            wh[poz]^=1;
        }
        for(i=0;i<n;i++)
        {
            if(!wh[atac[i].ind])
                a[0].ins({atac[i].a,atac[i].b});
            if(wh[apar[i].ind])
                a[1].ins({apar[i].a,apar[i].b});
        }
    }
    long long Q(long long X,long long Y)
    {
        r1=X,r2=Y;
        p1=a[0].cb(r1/r2);
        p2=a[1].cb(r1/r2);
        return (a[0].st[p1].ev(X,Y)+a[1].st[p2].ev(X,Y));
    }
}var[magic+2];
void Init(std::vector<int> A, std::vector<int> D, std::vector<int> P){
	int N = A.size();
	n=N;
	for(i=2;i<=n;i++)
        lg[i]=lg[i/2]+1;
    for(i=0;i<n;i++)
    {
        atac[i].a=A[i],atac[i].b=P[i],atac[i].ind=i;
        apar[i].a=D[i],apar[i].b=P[i],apar[i].ind=i;
        Aa.ins({A[i],P[i]});
        Dd.ins({D[i],P[i]});
    }
    sort(atac,atac+n,comp);
    sort(apar,apar+n,comp);
    for(int it=0;it<magic;it++)
        var[it].ini(it/2,it%2);
}
long long BestSquad(int X, int Y){
    long long ret=0;
    for(int it=0;it<magic;it++)
        ret=max(ret,var[it].Q(X,Y));
	return ret;
}

Compilation message

squad.cpp: In function 'long long int BestSquad(int, int)':
squad.cpp:112:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
     for(int it=0;it<magic;it++)
     ^~~
squad.cpp:114:2: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
  return ret;
  ^~~~~~

Subtask #1
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 1280 KB Output is correct
2 Correct 9 ms 1536 KB Output is correct
3 Correct 953 ms 66296 KB Output is correct
4 Correct 911 ms 66296 KB Output is correct
5 Correct 43 ms 17400 KB Output is correct
6 Correct 627 ms 245240 KB Output is correct
7 Correct 599 ms 245240 KB Output is correct
8 Correct 617 ms 245240 KB Output is correct

Subtask #2
0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 1280 KB Output is correct
2 Correct 16 ms 1792 KB Output is correct
3 Correct 1598 ms 66504 KB Output is correct
4 Correct 1734 ms 66484 KB Output is correct
5 Correct 213 ms 7912 KB Output is correct
6 Execution timed out 3107 ms 156024 KB Time limit exceeded
7 Halted 0 ms 0 KB -

Subtask #3
0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 1280 KB Output is correct
2 Correct 9 ms 1536 KB Output is correct
3 Correct 953 ms 66296 KB Output is correct
4 Correct 911 ms 66296 KB Output is correct
5 Correct 43 ms 17400 KB Output is correct
6 Correct 627 ms 245240 KB Output is correct
7 Correct 599 ms 245240 KB Output is correct
8 Correct 617 ms 245240 KB Output is correct
9 Correct 6 ms 1280 KB Output is correct
10 Correct 16 ms 1792 KB Output is correct
11 Correct 1598 ms 66504 KB Output is correct
12 Correct 1734 ms 66484 KB Output is correct
13 Correct 213 ms 7912 KB Output is correct
14 Execution timed out 3107 ms 156024 KB Time limit exceeded
15 Halted 0 ms 0 KB -