lel

test_.idea_misc.xml

<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
  <component name="CMakeWorkspace" PROJECT_DIR="$PROJECT_DIR$" />
  <component name="ProjectRootManager" version="2" />
</project>

test_.idea_modules.xml

<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
  <component name="ProjectModuleManager">
    <modules>
      <module fileurl="file://$PROJECT_DIR$/.idea/test.iml" filepath="$PROJECT_DIR$/.idea/test.iml" />
    </modules>
  </component>
</project>

test_.idea_test.iml

<?xml version="1.0" encoding="UTF-8"?>
<module type="CPP_MODULE" version="4">
  <component name="NewModuleRootManager">
    <content url="file://$MODULE_DIR$" />
    <orderEntry type="inheritedJdk" />
    <orderEntry type="sourceFolder" forTests="false" />
  </component>
</module>

test_.idea_vcs.xml

<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
  <component name="VcsDirectoryMappings">
    <mapping directory="" vcs="" />
  </component>
</project>

test_CMakeLists.txt

cmake_minimum_required(VERSION 2.8.4)
project(test)

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")

set(SOURCE_FILES main.cpp)
add_executable(test ${SOURCE_FILES})

test_main.cpp

#include <iostream>
#include <cstdlib>
#include <cstdio>
#include <string>
#include <cstring>
#include <vector>

using namespace std;

#define MAX(x, y) ((x > y) ? (x) : (y))
#define MIN(x, y) ((x < y) ? (x) : (y))


int main(){
    //freopen("seabattle.in", "r", stdin); freopen("seabattle.out", "w", stdout);
    int n, m;
    int k, x, y;
    cin >> n >> m;
    cin >> x >> y;
    cin >> k;
    int rxu = MAX(x - 1, 0), rxd = MAX(n - x, 0), ryl = MAX(y - 1, 0), ryr = MAX(m - y, 0);
    cout << rxu << " " << rxd << " " << ryl << " " << ryr << endl;

    if(!rxu)
    {
        if(!ryl && !ryr)
        {
            cout << (k-1) << endl;
            exit(EXIT_SUCCESS);
        }
        if(!ryl && !rxd)
        {
            cout << (k-1) << endl;
            exit(EXIT_SUCCESS);
        }
        if(!ryr && !rxd)
        {
            cout << (k-1) << endl;
            exit(EXIT_SUCCESS);
        }
        cout << (k+1) << endl;
        exit(EXIT_SUCCESS);
    }
    if(!ryr)
    {
        if ((!rxu && !rxd) || (!ryl && !rxu) || (!ryl && !rxd))
        {
            cout << (k - 1) << endl;
            exit(EXIT_SUCCESS);
        }
        cout << k+1 << endl;
        exit(EXIT_SUCCESS);
    }
    if(!rxd)
    {
        if((!rxu && !ryl) || (!rxu && !ryr) || (!ryl && !ryr))
        {
            cout << (k-1) << endl;
            exit(EXIT_SUCCESS);
        }
        cout << k+1 << endl;
    }
    if(!ryl)
    {
        if((!rxu && !rxd) || (!rxu && !ryr) || (!rxd && !ryr))
        {
            cout << (k-1) << endl;
            exit(EXIT_SUCCESS);
        }
        cout << (k+1) << endl;
        exit(EXIT_SUCCESS);
    }
    if((rxd <= k/2 || rxu <= k/2) && (ryl <= k/2 || ryr <= k/2))
    {
        cout << (k+1) << endl;
        exit(EXIT_SUCCESS);
    }
    cout << (k+2) << endl;
    return 0;
}