제출 #291816

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
291816		medmdg	Vision Program (IOI19_vision)	C++14	46 / 100	12 ms	1272 KiB

vision

#include<bits/stdc++.h>
#include "vision.h"
using namespace std;
void construct_network(int H, int W, int K){
    vector<int> hori;
    vector<int> vert;
    int bh=H*W;
    int eh;
    for(int i=0;i<H;i++){
        vector<int> al;
        for(int j=0;j<W;j++){
            al.push_back(j+i*W);
        }
        eh=add_or(al);
        hori.push_back(eh);
    }
    int bv=eh+1;
    int ev;
    for(int i=0;i<W;i++){
        vector<int> al;
        for(int j=i;j<H*W;j+=W){
            al.push_back(j);
        }
        ev=add_or(al);
        vert.push_back(ev);
    }
    vector<int> dishori;
    vector<int> disvert;
    int end=ev;
    vector<int> OH;
    for(int i=bh;i<=eh;i++){
        OH.push_back(i);
    }
    dishori.push_back(add_xor(OH));
    vector<int> OV;
    for(int i=bv;i<=ev;i++){
        OV.push_back(i);
    }
    disvert.push_back(add_xor(OV));
    end+=2;
    for(int i=1;i<=min(H-1,K);i++){
        vector<int> h;
        for(int j=bh;j<=eh-i;j++){
            vector<int> hp;
            hp.push_back(j);
            hp.push_back(j+i);
            end=add_and(hp);
            h.push_back(end);
        }
        if(h.size()){
            dishori.push_back(add_or(h));
            end++;
        }else{
            break;    
        }
    }
    for(int i=1;i<=min(W-1,K);i++){
        vector<int> h;
        for(int j=bv;j<=ev-i;j++){
            vector<int> hp;
            hp.push_back(j);
            hp.push_back(j+i);
            end=add_and(hp);
            h.push_back(end);
        }
        if(h.size()){
            disvert.push_back(add_or(h));
            end++;
        }else{
            break;
        }
    }
    int last;
    for(int i=0;i<=K;i++){
        if((int)(disvert.size())>i&&(int)(dishori.size())>K-i){
            vector<int> f;
            f.push_back(disvert[i]);
            f.push_back(dishori[K-i]);
            last=(add_and(f));
        }
    }
    vector<int> nb;
    for(int i=end+1;i<=last;i++){
        nb.push_back(i);
    }
    last=add_or(nb);
    return;
}

컴파일 시 표준 에러 (stderr) 메시지

vision.cpp: In function 'void construct_network(int, int, int)':
vision.cpp:83:22: warning: 'last' may be used uninitialized in this function [-Wmaybe-uninitialized]
   83 |     for(int i=end+1;i<=last;i++){
      |                     ~^~~~~~

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