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Uncaught Error: Call to a member function prepare() on null in C:\xampp\htdocs\facultate\CosCump\product.php:5 Stack trace: #0 {main} thrown in C:\xampp\htdocs\facultate\CosCump\product.php on line 5

def get_label(Dir): for nextdir in os.listdir(Dir): if not nextdir.startswith('.'): if nextdir in ['NORMAL']: label = 0 elif nextdir in ['PNEUMONIA']: label = 1 else: label = 2 return nextdir, label

#include int main (void) { int a, b; printf("dwse mou dio akeraious arithmous: \n"); scanf("%d %d", &a, &b); printf("oi arithmoi poy edwses einai: %d kai %d", a, b); return 0; }

/snap/snap-store/518/usr/bin/snap-store: symbol lookup error: /snap/snap-store/518/gnome-platform/usr/lib/x86_64-linux-gnu/libgtk-3.so.0: undefined symbol: atk_plug_set_child

const evenOrOdd = (number) => { // TODO: this should return "even" if the number is even, "odd" otherwise if (number % 2 === 0) { return "even"; // eslint-disable-next-line no-else-return } else { return "odd"; } }; in one line

#include using namespace std; int main() { int a = 3; float b = 4.5; double c = 5.25; double sum; sum = a + b + c; cout << "The sum of a, b, and c is", sum << endl; return 0; }

import csv import re data = [] with open('customerData.csv') as csvfile: reader = csv.DictReader(csvfile) for row in reader: data.append(row) print(data[0]) print(data[1]["Name"]) print(data[2]["Spent Past 30 Days"])

given an array of time intervals (start, end) for classroom lectures (possibly overlapping), find the minimum number of rooms required. for example, given [(30, 75), (0, 50), (60, 150)], you should return 2.

cv2.imshow("frame",frame) cv2.error: opencv(4.4.0) c:\users\appveyor\appdata\local\temp\1\pip-req-build-wwma2wne\opencv\modules\highgui\src\window.cpp:376: error: (-215:assertion failed) size.width>0

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