oj.uz

Submission #138001

# Submission time Handle Problem Language Result Execution time Memory
138001 2019-07-28T20:46:15 Z vardan__02 Chessboard (IZhO18_chessboard) C++14
16 / 100
 49 ms 3788 KB 
#include <iostream>
#include <fstream>
#include <algorithm>
#include <cstring>
#include <string>
#include <vector>
#include <cstdio>
#include <queue>
#include <deque>
#include <stack>
#include <cmath>
#include <list>
#include <set>
#include <map>
using namespace std;
typedef long long ll;
#define MP make_pair
#define PB push_back
ll n,k,p,u,ans,i,j,v,x1[100005],x2[100005],y[100005],y2[100005],ans1,ans2,t,q;
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    cin>>n>>k;
    for(i=1;i<=k;i++)
    {
        cin>>x1[i]>>y[i]>>x2[i]>>y2[i];
        ll kent1=0,kent2=0,zuyg1=0,zuyg2=0,t1,t2;
        t1=x2[i]-x1[i]+1;
        if(x1[i]%2==0)
        {
            zuyg1+=(t1+1)/2;
            kent1+=t1/2;
        }
        else
        {
            kent1+=(t1+1)/2;
            zuyg1+=t1/2;
        }
        t2=y2[i]-y[i]+1;
        if(y[i]%2==0)
        {
            zuyg2+=(t2+1)/2;
            kent2+=t2/2;
        }
        else
        {
            kent2+=(t2+1)/2;
            zuyg2+=t2/2;
        }
        u+=kent1*kent2+zuyg1*zuyg2;
        v+=kent1*zuyg2+zuyg1*kent2;
    }
    if(n%2==0)
        p=n*n/2;
    else
        p=n*n/2+1;
    q=n*n/2;
    ans=min(p-u+v,q-v+u);
    for(j=2;j<=n;j++)
    {
        if(n%j==0)
        {
            u=0;
            v=0;
            t=n/j;
            for(i=1;i<=k;i++)
            {
                ll kent1=0,kent2=0,zuyg1=0,zuyg2=0,t1,t2,arajin1=0,arajin2=0,verjin1=0,verjin2=0,g,h;
                if((x1[i]-1)%t==0)
                    arajin1=(x1[i]-1)/t+1;
                else
                    arajin1=(x1[i]-1)/t;
                if(x2[i]%t==0)
                    verjin1=x2[i]/t;
                else
                    verjin1=x2[i]/t+1;
                if((y[i]-1)%t==0)
                    arajin2=(y[i]-1)/t+1;
                else
                    arajin2=(y[i]-1)/t;
                if(y2[i]%t==0)
                    verjin2=y2[i]/t;
                else
                    verjin2=y2[i]/t+1;
                if(arajin1==verjin1)
                {
                    if(arajin1%2==0)
                        zuyg1+=x2[i]-x1[i]+1;
                    else
                        kent1=x2[i]-x1[i]+1;
                }
                else
                {
                    if((x1[i]-1)%t==0)
                    {
                        if(arajin1%2==0)
                            zuyg1+=t;
                        else
                            kent1+=t;
                    }
                    else
                    {
                        t1=t-(x1[i]-1)%t;
                        if(arajin1%2==0)
                            zuyg1+=t1;
                        else
                            kent1+=t1;
                    }
                    arajin1++;
                    if(x2[i]%t==0)
                    {
                        if(verjin1%2==0)
                            zuyg1+=t;
                        else
                            kent1+=t;
                    }
                    else
                    {
                        t1=x2[i]%t;
                        if(verjin1%2==0)
                            zuyg1+=t1;
                        else
                            kent1+=t1;
                    }
                    verjin1--;
                    g=verjin1-arajin1+1;
                    if(arajin1%2==0)
                    {
                        t1=(g+1)/2;
                        t2=g/2;
                    }
                    else
                    {
                        t1=g/2;
                        t2=(g+1)/2;
                    }
                    zuyg1+=t1*t;
                    kent1+=t2*t;
                }


                if(arajin2==verjin2)
                {
                    if(arajin2%2==0)
                        zuyg2+=y2[i]-y[i]+1;
                    else
                        kent2=y2[i]-y[i]+1;
                }
                else
                {
                    if((y[i]-1)%t==0)
                    {
                        if(arajin2%2==0)
                            zuyg2+=t;
                        else
                            kent2+=t;
                    }
                    else
                    {
                        t1=t-(y[i]-1)%t;
                        if(arajin2%2==0)
                            zuyg2+=t1;
                        else
                            kent2+=t1;
                    }
                    arajin2++;
                    if(y2[i]%t==0)
                    {
                        if(verjin2%2==0)
                            zuyg2+=t;
                        else
                            kent2+=t;
                    }
                    else
                    {
                        t1=y2[i]%t;
                        if(verjin2%2==0)
                            zuyg2+=t1;
                        else
                            kent2+=t1;
                    }
                    verjin2--;
                    g=verjin2-arajin2+1;
                    if(arajin2%2==0)
                    {
                        t1=(g+1)/2;
                        t2=g/2;
                    }
                    else
                    {
                        t1=g/2;
                        t2=(g+1)/2;
                    }
                    zuyg2+=t1*t;
                    kent2+=t2*t;
                }
                u+=kent1*kent2+zuyg1*zuyg2;
                v+=kent1*zuyg2+zuyg1*kent2;
            }
            q=n/j;
            if(j%2==1)
            ans1=j*j/2+1;
            else
            ans1=j*j/2;
            ans1=ans1*q*q;
            ans1=ans1-u+v;
            ans2=j*j/2;
            ans2=ans2*q*q;
            ans2=ans2-v+u;
            ans=min(ans,ans2);
            ans=min(ans,ans1);
        }
    }
    cout<<ans<<endl;
    return 0;
}

Compilation message

chessboard.cpp: In function 'int main()':
chessboard.cpp:70:100: warning: unused variable 'h' [-Wunused-variable]
                 ll kent1=0,kent2=0,zuyg1=0,zuyg2=0,t1,t2,arajin1=0,arajin2=0,verjin1=0,verjin2=0,g,h;
                                                                                                    ^

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 2936 KB Output is correct
2 Correct 10 ms 1148 KB Output is correct
3 Correct 23 ms 2176 KB Output is correct
4 Correct 24 ms 2296 KB Output is correct
5 Correct 32 ms 2696 KB Output is correct
6 Correct 20 ms 1912 KB Output is correct
7 Correct 6 ms 764 KB Output is correct
8 Correct 21 ms 1936 KB Output is correct
9 Correct 49 ms 3788 KB Output is correct
10 Correct 29 ms 2680 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 376 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 16.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 376 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 2936 KB Output is correct
2 Correct 10 ms 1148 KB Output is correct
3 Correct 23 ms 2176 KB Output is correct
4 Correct 24 ms 2296 KB Output is correct
5 Correct 32 ms 2696 KB Output is correct
6 Correct 20 ms 1912 KB Output is correct
7 Correct 6 ms 764 KB Output is correct
8 Correct 21 ms 1936 KB Output is correct
9 Correct 49 ms 3788 KB Output is correct
10 Correct 29 ms 2680 KB Output is correct
11 Incorrect 2 ms 376 KB Output isn't correct
12 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 36 ms 2936 KB Output is correct
10 Correct 10 ms 1148 KB Output is correct
11 Correct 23 ms 2176 KB Output is correct
12 Correct 24 ms 2296 KB Output is correct
13 Correct 32 ms 2696 KB Output is correct
14 Correct 20 ms 1912 KB Output is correct
15 Correct 6 ms 764 KB Output is correct
16 Correct 21 ms 1936 KB Output is correct
17 Correct 49 ms 3788 KB Output is correct
18 Correct 29 ms 2680 KB Output is correct
19 Incorrect 2 ms 376 KB Output isn't correct
20 Halted 0 ms 0 KB -