#include <bits/stdc++.h>
#include <cstring>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <windows.h>
#include <iostream>
#include <conio.h>
#include <stdlib.h>
using namespace std;
typedef long long ll;
const ll N=1e5+1e4;
COORD get_font_size()
{
    COORD font_size;
    HANDLE handle=GetStdHandle(STD_OUTPUT_HANDLE);
    struct CONSOLE_FONT{
        DWORD index;
        COORD dim;
    }cfi;
    typedef COORD (WINAPI *PROCGETCONSOLEFONTSIZE)(HANDLE, DWORD);
    typedef BOOL (WINAPI *PROCGETCURRENTCONSOLEFONT)(HANDLE, BOOL, struct CONSOLE_FONT*);
    HMODULE hKernel32=GetModuleHandle("kernel32");
    PROCGETCONSOLEFONTSIZE GetConsoleFontSize=(PROCGETCONSOLEFONTSIZE)GetProcAddress(hKernel32,"GetConsoleFontSize");
    PROCGETCURRENTCONSOLEFONT GetCurrentConsoleFont=(PROCGETCURRENTCONSOLEFONT)GetProcAddress(hKernel32,"GetCurrentConsoleFont");
    GetCurrentConsoleFont(handle, FALSE, &cfi);             
    font_size=GetConsoleFontSize(handle, cfi.index);     

    return font_size;
}


//______________________________


void full_screen()
{
    HWND hwnd=GetForegroundWindow();
    HANDLE handle=GetStdHandle(STD_OUTPUT_HANDLE);   /* 标准输出缓冲区句柄 */
    int cx=GetSystemMetrics(SM_CXSCREEN);            /* 屏幕宽度 */
    int cy=GetSystemMetrics(SM_CYSCREEN);            /* 屏幕高度 */

    COORD size=get_font_size();
    char cmd[32]={0};
    sprintf(cmd, "MODE CON: COLS=%d LINES=%d", cx / size.X, cy / size.Y);
    system(cmd);
    SetWindowPos(hwnd, HWND_TOP, 0, .0, cx, cy, 0);
}
signed main()
{
    full_screen();
    return 0;
}