Submission #873612

#	Time	Username	Problem	Language	Result	Execution time	Memory
873612		andrei_boaca	Vision Program (IOI19_vision)	C++17	26 / 100	10 ms	1700 KiB

vision

#include "vision.h"
#include <bits/stdc++.h>
//#include "grader.cpp"
using namespace std;

vector<int> lins,cols;
vector<int> dlin[505],dcol[505];
int d1[505],d2[505],ind;
void construct_network(int H, int W, int K)
{
    if(min(H,W)==1)
    {
        H=max(H,W);
        vector<int> v;
        int cnt=0;
        for(int i=0;i+K<H;i++)
        {
            v={i,i+K};
            add_and(v);
            cnt++;
        }
        v.clear();
        for(int i=H;i<H+cnt;i++)
            v.push_back(i);
        assert(v.size()==cnt);
        add_or(v);
        return;
    }
    if(K==1)
    {
        ind=H*W-1;
        for(int i=0;i<H;i++)
        {
            vector<int> v;
            for(int j=0;j<W;j++)
                v.push_back(i*W+j);
            add_or(v);
            ind++;
            lins.push_back(ind);
        }
        for(int j=0;j<W;j++)
        {
            vector<int> v;
            for(int i=0;i<H;i++)
                v.push_back(i*W+j);
            add_or(v);
            ind++;
            cols.push_back(ind);
        }
        for(int i=0;i<H;i++)
            for(int j=i+1;j<H&&j-i<=K;j++)
            {
                vector<int> v={lins[i],lins[j]};
                add_and(v);
                ind++;
                dlin[j-i].push_back(ind);
            }
        for(int i=0;i<W;i++)
            for(int j=i+1;j<W&&j-i<=K;j++)
            {
                vector<int> v={cols[i],cols[j]};
                add_and(v);
                ind++;
                dcol[j-i].push_back(ind);
            }
        vector<int> a;
        for(int d=1;d<=H-1&&d<=K;d++)
        {
            ind++;
            add_or(dlin[d]);
            d1[d]=ind;
            a.push_back(ind);
        }
        a.clear();
        for(int d=1;d<=W-1&&d<=K;d++)
        {
            ind++;
            add_or(dcol[d]);
            d2[d]=ind;
            a.push_back(ind);
        }
        a.clear();
        for(int i=0;i+1<H;i++)
        {
            vector<int> v;
            for(int j=i+1;j<H;j++)
                v.push_back(lins[j]);
            ind++;
            add_or(v);
            vector<int> p={ind,lins[i]};
            add_and(p);
            ind++;
            a.push_back(ind);
        }
        add_or(a);
        ind++;
        add_not(ind);
        ind++;
        d1[0]=ind;

        a.clear();
        for(int i=0;i+1<W;i++)
        {
            vector<int> v;
            for(int j=i+1;j<W;j++)
                v.push_back(cols[j]);
            ind++;
            add_or(v);
            vector<int> p={ind,cols[i]};
            add_and(p);
            ind++;
            a.push_back(ind);
        }
        add_or(a);
        ind++;
        add_not(ind);
        ind++;
        d2[0]=ind;
        vector<int> cand;
        for(int x=0;x<=H-1;x++)
            for(int y=0;y<=W-1;y++)
                if(x+y==K)
                {
                    vector<int> v={d1[x],d2[y]};
                    add_and(v);
                    ind++;
                    cand.push_back(ind);
                }
        add_or(cand);
        return;
    }
    vector<int> cand;
    int cnt=0;
    for(int i=0;i<H;i++)
        for(int j=0;j<W;j++)
        {
            vector<int> v;
            for(int l=0;l<H;l++)
            {
                int need=K-abs(l-i);
                if(need<0)
                    continue;
                int c=j+need;
                if(c>=0&&c<W)
                    v.push_back(l*W+c);
                c=j-need;
                if(c>=0&&c<W&&need!=0)
                    v.push_back(l*W+c);
            }
            if(cnt<9997&&!v.empty())
            {
                ind++;
                add_or(v);
                cnt++;

                vector<int> t={ind,i*W+j};
                add_and(t);
                cnt++;
                ind++;
                cand.push_back(ind);
            }
        }
    add_or(cand);
    return;
}

Compilation message (stderr)

In file included from /usr/include/c++/10/cassert:44,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:33,
                 from vision.cpp:2:
vision.cpp: In function 'void construct_network(int, int, int)':
vision.cpp:25:24: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   25 |         assert(v.size()==cnt);
      |                ~~~~~~~~^~~~~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 11
• Subtask 3: 0 / 11
• Subtask 4: 0 / 15
• Subtask 5: 12 / 12
• Subtask 6: 0 / 8
• Subtask 7: 14 / 14
• Subtask 8: 0 / 19