2025 01 14 | 특수목적코딩학원 광교본점

// {

// System.out.print(arr[j] + " ");

// }

// // starting number of each row increases by 1 cuz j starts at i (i++)

// for(j=0; j<i; j++)

// {

// System.out.print(arr[j] + " ");

// }

// // the remaining numbers of arr except i (max index as i)

// System.out.println("");

// // new line printing

// }

//}

not writing for(j=0; j<i; j++) and arr[j] print results in:

1 2 3 4 5

2 3 4 5

3 4 5

4 5

//// 1407

//import java.util.Scanner;

//public class Main

//{

// public static void main(String[] args)

// {

// Scanner input = new Scanner(System.in);

// String a = input.nextLine();

// for(int i=0; i<a.length(); i++)

// {

// // a[i] => a.charAt(i)

// // because String is a class, it needs method.

// if(a.charAt(i)!= ' ')

// {

// System.out.print(a.charAt(i));

// }

//}

//// 1409

//import java.util.Scanner;

//public class Main

//{

// public static void main(String[] args)

// {

// Scanner input = new Scanner(System.in);

// int i;

// int[] num = new int[10];

// int a;

// int k;

// for(i=0; i<10; i++)

// {

// a = input.nextInt();

// num[i] = a;

// }

// k = input.nextInt();

// System.out.print(num[k-1]);

// }

//}

//// 1410

//import java.util.Scanner;

//public class Main

//{

// public static void main(String[] args)

// {

// Scanner input = new Scanner(System.in);

// String paren = input.nextLine();

// int open = 0;

// int closed = 0;

// int i;

// for(i=0; i<paren.length(); i++)

// {

// if(paren.charAt(i) == '(')

// {

// open += 1;

// }

// else if(paren.charAt(i) == ')')

// {

// closed += 1;

// }

// System.out.print(open + " " + closed);

// }

//}

//// 1411

//import java.util.Scanner;

//public class Main

//{

// public static void main(String[] args)

// {

// Scanner input = new Scanner(System.in);

// int n = input.nextInt();

// int i;

// int a;

// int[] num = new int[51];

// for(i=0; i<n-1; i++)

// {

// a = input.nextInt();

// num[a] = 1;

// }

// for(i=1; i<=n; i++)

// {

// if(num[i] != 1)

// {

// System.out.print(i);

// break;

// }

//}

// 1412

* a+=1 python

* a++ java

* arr[x.charAt(i)]++;

* arr[97] arr[98] ..... arr[122]

* 'a'갯수 'b'갯수 .... 'z'갯수

* same thing but easier to understand:

* (-'a' takes away the 97 => results in starting number 0)

* arr[x.charAt(i)-'a']++;

* arr[0] arr[1] ... arr[25]

* 'a'갯수 'b'갯수 ... 'z'갯수

//// 1412 HARD QUESTION!!!!!!!!!!!!!!!!!!!

//import java.util.Scanner;

//public class Main

//{

// public static void main(String[] args)

// {

// int[] arr = new int[100];

// int i;

// Scanner input = new Scanner(System.in);

// String x = input.nextLine();

// for(i=0; i<x.length(); i++)

// {

// if('a'<=x.charAt(i)&& x.charAt(i)<123)

// // only add 1 to array if the x index's an alphabet (ascii alphabet code)

// {

// arr[x.charAt(i)-'a']++; // starts at x[0], ++ basically

// }

// for(i=97; i<123; i++)

// System.out.println((char)(i) + ":" + arr[i-97]);

// // turns i into ascii alphabet + ":" + saved number in arr (starts from 0)

// }

//}

'''

import sys

from PyQt5.QtWidgets import QApplication, QMainWindow, QAction, qApp

from PyQt5.QtGui import QIcon

class MyApp(QMainWindow):

def __init__(self):

super().__init__()

self.initUI()

def initUI(self):

exitAction = QAction(QIcon('exit.png'), 'Exit', self)

exitAction.setShortcut('Ctrl+Q')

exitAction.setStatusTip('Exit application')

exitAction.triggered.connect(qApp.quit)

self.statusBar()

menubar = self.menuBar()

menubar.setNativeMenuBar(False)

filemenu = menubar.addMenu('&File')

filemenu.addAction(exitAction)

self.setWindowTitle('Menubar')

self.setGeometry(300, 300, 300, 200)

self.show()

if __name__ == '__main__':

app = QApplication(sys.argv)

ex = MyApp()

sys.exit(app.exec_())

'''

# import sys

# from PyQt5.QtWidgets import QApplication, QWidget

# class MyApp(QWidget):

# def __init__(self):

# super().__init__()

# self.initUI()

# def initUI(self):

# self.setWindowTitle('My First Application')

# self.move(500, 300) # 창이 뜨는 위치 변경

# self.resize(400, 500) # 창 크기 변경

# self.show()

# if __name__ == '__main__':

# app = QApplication(sys.argv)

# ex = MyApp()

# sys.exit(app.exec_())

# import sys

# from PyQt5.QtWidgets import QApplication, QWidget, QLabel,QPushButton, QVBoxLayout

# from PyQt5.QtCore import Qt

# class MyApp(QWidget):

# def __init__(self):

# super().__init__()

# self.initUI()

# def initUI(self):

# btn1 = QPushButton('&Button1', self)

# label1 = QLabel('First Label', self)

# label1.setAlignment(Qt.AlignCenter)

# vbox = QVBoxLayout()

# vbox.addWidget(btn1)

# vbox.addWidget(label1)

# self.setLayout(vbox)

# self.setGeometry(300, 300, 300, 200)

# self.show()

# if __name__ == '__main__':

# app = QApplication(sys.argv)

# ex = MyApp()

# sys.exit(app.exec_())

# import sys

# from PyQt5.QtWidgets import (QApplication, QWidget

# , QLCDNumber, QDial, QPushButton, QVBoxLayout, QHBoxLayout)

# class MyApp(QWidget):

# def __init__(self):

# super().__init__()

# self.initUI()

# def initUI(self):

# lcd = QLCDNumber(self)

# dial = QDial(self)

# btn1 = QPushButton('Big', self)

# btn2 = QPushButton('Small', self)

# hbox = QHBoxLayout()

# hbox.addWidget(btn1)

# hbox.addWidget(btn2)

# vbox = QVBoxLayout()

# vbox.addWidget(lcd)

# vbox.addWidget(dial)

# vbox.addLayout(hbox)

# self.setLayout(vbox)

# dial.valueChanged.connect(lcd.display)

# btn1.clicked.connect(self.resizeBig)

# btn2.clicked.connect(self.resizeSmall)

# self.setWindowTitle('Signal and Slot')

# self.setGeometry(200, 200, 200, 250)

# self.show()

# def resizeBig(self):

# self.resize(100, 500)

# def resizeSmall(self):

# self.resize(200, 250)

# if __name__ == '__main__':

# app = QApplication(sys.argv)

# ex = MyApp()

# sys.exit(app.exec_())

import math

a=int(input())