Dijkstra’s and Multistage Graph Algorithms in C
Dijkstra’s Algorithm Implementation in C
This code implements Dijkstra’s algorithm to find the shortest path between vertices in a graph. It takes an adjacency matrix as input, where each cell arr[i][j] represents the weight of the edge between vertex i and vertex j. If there is no edge, the value is 0.
#include <stdio.h>
int n; // Global variable for the number of vertices
void insertvalue(int arr[n][n]) {
int i, j, val, value;
for (i = 0; i < n; i++) {
for (j = i; j Understanding TV Signal Distribution Methods
Composite Signal TV (Composite Video)
The composite video signal includes several distinct parts:
- The video information in interlaced form.
- Pulses (not cleared) to return is visible.
- Line and field sync to maintain synchronism between the sender and receiver.
36 Shots and 12 Pauses
Antenna Signal
Cable attenuation + gain amplifier – gain attenuation cable + cable head-attenuation attenuation dealer-cable-attenuation step-step shunt-wire cable.
Distribution via Unique
It is most used in family or single-unit
Read MoreUnderstanding Water Hardness, Softening, and Coal Analysis
Understanding Water Hardness and Treatment
Temporary hardness is caused by dissolved bicarbonates of calcium and magnesium (e.g., Ca(HCO₃)₂ and Mg(HCO₃)₂). It can be removed by boiling the water, which precipitates the bicarbonates as insoluble carbonates. Permanent hardness is caused by dissolved chlorides, sulfates, or nitrates of calcium and magnesium (e.g., CaCl₂, MgSO₄). It cannot be removed by boiling and requires chemical treatment for removal. Hardness is measured in various units:
Read MoreC Code Examples: Calculator, Leap Year, and More
C Code Examples
1. Calculator
#include <stdio.h>
int main() {
char operator;
double num1, num2, result;
// Input
printf("Enter an operator (+, -, *, /): ");
scanf(" %c", &operator);
printf("Enter two numbers: ");
scanf("%lf %lf", &num1, &num2);
// Switch case to perform calculation based on the operator
switch (operator) {
case '+':
result = num1 + num2;
break;
case '-':
result = num1 - Read More
C Code Examples: Triangle, Commission, Date, Search
Triangle Type Determination
This C code determines the type of triangle based on the lengths of its sides.
#include <stdio.h>
// Function to check if sides form a triangle
int isValidTriangle(int a, int b, int c) {
return (a + b > c) && (a + c > b) && (b + c > a);
}
// Function to determine the type of triangle
void determineTriangleType(int a, int b, int c) {
if (!isValidTriangle(a, b, c)) {
printf("Not a triangle.\n");
return;
}
if Adding a Custom Service in Android System
This document describes how to add a custom service to the Android system. This example was implemented on Android 7.0, so code locations may vary on different systems.
1. Design the Interface
Create a new folder named addservice under the frameworks/base directory. Inside addservice, create the following structure:
Android.mkjava/android/mymodule/test(This path can be customized)
The java/android/mymodule/test directory will contain the Java interface files and corresponding AIDL files.
The Android.