In this video, we configure Kitty terminal step by step in a simple Bangla-friendly way. Perfect for beginners who want a modern and clean Linux terminal setup. What is covered Installing Kitty terminal Basic Kitty configuration Applying themes Using Tokyo Night theme Making terminal background transparent
Learn how to build a CGPA & Grade Calculator in C step-by-step. Final code #include<stdio.h> // mark between 0 -100 float cgpa(float mark){ if(mark>100 || mark < 0) return 0; else if(mark >= 80) return 4.0; else if(mark >= 75) return 3.75; else if(mark >= 70) return 3.50; else if(mark >= 65) return 3.25; else if(mark >= 60) return 3.00; else if(mark >= 55) return 2.75; else if(mark >= 50) return 2.50; else if(mark >= 45) return 2.25; else if(mark >= 40) return 2.00; else return 0.0; } // CGPA to grade, where [cgpa] is between 0 - 4.0 char* cgpaToGrade(float cgpa) { if (cgpa > 4.0 || cgpa < 0) return "F"; else if(cgpa >= 4.0) return "A+"; else if(cgpa >= 3.75) return "A"; else if(cgpa >= 3.5) return "A-"; else if(cgpa >= 3.25) return "B+"; else if(cgpa >= 3.0) return "B"; else if(cgpa >= 2.75) return "B-"; else if(cgpa >= 2.5) return "C+"; else if(cgpa >= 2.25) return "C"; else if(cgpa >= 2.0) return "D"; else return "F"; } /// [avg] is the mark between 0 - 100 char* calculateGrade(float avg){ if (avg>100) return "invalid number"; else if(avg >= 80) return "A+"; else if(avg >= 75) return "A"; else if(avg >= 70) return "A-"; else if(avg >= 65) return "B+"; else if(avg >= 60) return "B"; else if(avg >= 55) return "B-"; else if(avg >= 50) return "C+"; else if(avg >= 45) return "C"; else if(avg >= 40) return "D"; else return "F"; } int main(){ int n, total=0; float cgpaTotal=0.0; printf("How many subject you like to calculate: "); scanf("%d", &n); for(int i=0; i< n; i++){ int number ; printf("Enter your %d subject Mark: ", i +1); scanf("%d", &number); cgpaTotal += cgpa(number); total += number; } float avg = total/n; float result = cgpaTotal / n; char* grade = cgpaToGrade(result); printf("total number %d, average %.2f\n", total, avg); printf("Your CGPA %.2f %s\n", result, grade); return 0; }
We will learn how to store student struct with Dynamic memory. Dynamic Memory Struct #include <stdio.h> #include <stdlib.h> #include <string.h> struct Student { int id; char *name; }; int main(void) { struct Student *s = malloc(sizeof( struct Student)); if(!s){ // s == NULL perror("allocation failed"); return 1; } scanf("%d", &s->id); char temp[100]; scanf("%99s",temp); (*s).name = malloc(strlen(temp) + 1); if (!s->name){ perror("failed to allocate name"); free(s); return 1; } strcpy(s->name, temp); printf("\n%d\n", s->id); printf("Name: %s\n", s->name); free(s); return 0; } Student array #include <stdio.h> #include <stdlib.h> #include <string.h> struct Student { int id; char *name; }; int main(void) { struct Student *s = malloc(2 * sizeof(struct Student)); if (!s) { perror("allocation failed"); return 1; } for (int i = 0; i < 2; i++) { printf("Enter ID and name: "); scanf("%d", &s[i].id); char temp[100]; scanf("%99s", temp); s[i].name = malloc(strlen(temp) + 1); if (!s[i].name) { perror("failed to allocate name"); // free any previously allocated names before exiting for (int j = 0; j < i; j++) { free(s[j].name); } free(s); return 1; } strcpy(s[i].name, temp); printf("\nID: %d\n", s[i].id); printf("Name: %s\n", s[i].name); } // ✅ free all names after use for (int i = 0; i < 2; i++) { free(s[i].name); } free(s); return 0; } Simplify with function #include <stdio.h> #include <stdlib.h> #include <string.h> struct Student { int id; char *name; }; void freeStudent(struct Student *s, int counter){ for(int i =0; i<counter; i++){ free(s[i].name); } free(s); } int main(void) { int N = 2; struct Student *s = malloc(N*sizeof( struct Student)); if(!s){ // s == NULL perror("allocation failed"); return 1; } for (int i=0; i< N; i++) { printf("Enter id:"); scanf("%d", &s[i].id); char temp[100]; printf("Enter name: "); scanf("%99s",temp); s[i].name = malloc(strlen(temp) + 1); if (!s[i].name){ perror("failed to allocate name"); freeStudent(s,i); return 1; } strcpy(s[i].name, temp); printf("\n%d\n", s[i].id); printf("Name: %s\n\n", s[i].name); } freeStudent(s,N); return 0; }
আমরা দেখাবো printf, multi-line print, char define করার N উপায়, pointer vs array, এবং puts function। char str[] = "World"; store like Strings-এর User Input scanf, gets, fgets, getchar/putchar — ত্রুটি ও অপটিমাইজেশন। printf("10.4s","hello") will show like ...
কীভাবে Factorial Function, এবং Recursive Approach ব্যবহার করে Factorial বের করা যায়। Recursive Factorial int factorial(int n){ if (n==0) return 1; else return n * factorial(n-1); } How it works When n is 5,
এই ভিডিওতে আমি প্রোগ্রামিংয়ে লুপের বেসিক বিষয়গুলো সহজ কোড উদাহরণসহ বুঝিয়েছি। আপনি শিখবেন: ✅ For Loop → ১ থেকে n পর্যন্ত সংখ্যা প্রিন্ট করা ✅ Break & Continue → লুপের প্রবাহ নিয়ন্ত্রণ করা ✅ Infinite Loop → লুপ এক্সপ্রেশন ছাড়া কিভাবে হ্যান্ডেল করতে হয় এই ভিডিওতে আমি দেখিয়েছি কিভাবে একটি সহজ For Loop ব্যবহার করে N সংখ্যার যোগফল বের করতে হয়। ...
এই ভিডিওতে আমরা শিখব C Programming এ কিভাবে Variable Define করতে হয় এবং Naming Rules বা ভ্যারিয়েবলের নামকরণের নিয়মগুলো। What you’ll learn in this video: Variable কীভাবে কাজ করে Variable Define করার নিয়ম Naming Rules (কোন নামগুলো ব্যবহার করা যাবে, কোনগুলো যাবে না) Common ভুল এবং সেগুলো কিভাবে এড়ানো যায়
এই ভিডিওতে আমরা Git workflow এর essential commands ধাপে ধাপে দেখেছি। মূল commands: git init – initialize a Git repository (run only the first time) git add – stage files for the next commit git commit -m "msg" – save staged changes with a message git log – view commit history git log --oneline� – single line(short) log git diff – see changes since the last commit git status – view local changes
Learn how to install and use Bash-it — a powerful Bash framework that helps you manage scripts, aliases, themes, autocompletion and custom commands in your terminal (Bangla tutorial). This video covers everything from installation to basic usage, making your Linux terminal setup much more productive and fun! https://bash-it.readthedocs.io/en/latest/
Build a Quiz Game in C that reads questions from a file! We also learn from hardcoded questions first before moving to file-based input. What You’ll Learn: Reading questions and answers from a file Using arrays and strings to manage data Implementing scoring logic txt file data Our quiz.txt file contains questions in the following format: ...