This repository help us to mastering in C

Author: Vanshshu

.vscode/launch.json

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+{
+    "configurations": [
+        {
+            "name": "C/C++: gcc.exe build and debug active file",
+            "type": "cppdbg",
+            "request": "launch",
+            "program": "${fileDirname}\\${fileBasenameNoExtension}.exe",
+            "args": [],
+            "stopAtEntry": false,
+            "cwd": "${fileDirname}",
+            "environment": [],
+            "externalConsole": false,
+            "MIMode": "gdb",
+            "miDebuggerPath": "C:\\MinGW\\bin\\gdb.exe",
+            "setupCommands": [
+                {
+                    "description": "Enable pretty-printing for gdb",
+                    "text": "-enable-pretty-printing",
+                    "ignoreFailures": true
+                },
+                {
+                    "description": "Set Disassembly Flavor to Intel",
+                    "text": "-gdb-set disassembly-flavor intel",
+                    "ignoreFailures": true
+                }
+            ],
+            "preLaunchTask": "C/C++: gcc.exe build active file"
+        },
+        {
+            "name": "(gdb) Launch",
+            "type": "cppdbg",
+            "request": "launch",
+            "program": "enter program name, for example ${workspaceFolder}/a.exe",
+            "args": [],
+            "stopAtEntry": false,
+            "cwd": "${fileDirname}",
+            "environment": [],
+            "externalConsole": false,
+            "MIMode": "gdb",
+            "miDebuggerPath": "/path/to/gdb",
+            "setupCommands": [
+                {
+                    "description": "Enable pretty-printing for gdb",
+                    "text": "-enable-pretty-printing",
+                    "ignoreFailures": true
+                },
+                {
+                    "description": "Set Disassembly Flavor to Intel",
+                    "text": "-gdb-set disassembly-flavor intel",
+                    "ignoreFailures": true
+                }
+            ]
+        }
+    ],
+    "version": "2.0.0"
+}

.vscode/tasks.json

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+{
+    "tasks": [
+        {
+            "type": "cppbuild",
+            "label": "C/C++: gcc.exe build active file",
+            "command": "C:\\MinGW\\bin\\gcc.exe",
+            "args": [
+                "-fdiagnostics-color=always",
+                "-g",
+                "${file}",
+                "-o",
+                "${fileDirname}\\${fileBasenameNoExtension}.exe"
+            ],
+            "options": {
+                "cwd": "${fileDirname}"
+            },
+            "problemMatcher": [
+                "$gcc"
+            ],
+            "group": "build",
+            "detail": "Task generated by Debugger."
+        }
+    ],
+    "version": "2.0.0"
+}

01 .Basics codes/Sumbyrecuss.c

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+#include<stdio.h>
+int sum(int  n){
+    if (n==0 || n==1) return 1;
+        int reans=n+sum(n-1);
+    return reans;
+
+}
+int main(){
+    int n;
+    printf("entter the value of n:");
+    scanf("%d",&n);
+    int s= sum(n);
+    printf("%d",s);
+
+}

01 .Basics codes/Sumbyrecuss.exe

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+#include<stdio.h>
+int main(int argc, char const *argv[])
+{
+    int a, b;
+    printf("enter the first num");
+    scanf("%d",&a);
+     printf("enter the first num");
+    scanf("%d",&b);
+    int c=(a+b)/2;
+    printf("%d",c);
+    return 0;
+}
+ 

01 .Basics codes/add.c

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+#include<stdio.h>
+int main(){
+    int arr[10];
+    int size=0;
+    int i;
+    printf("Enter the size of array between 1 to 10: ");
+    scanf("%d",&size);
+    if(size < 1 || size > 10)
+    {
+        printf("Inavaild size");
+        return 0;
+    }
+    printf("Enter the element in the array: ");
+    for(i =0;i<size;i++)
+    {
+        scanf("%d",&arr[i]);
+    }
+    int choice,data;
+    printf("Enter the choice 1 for insert at the begining and 2 for the insert at the end and 3 for specific position: ");
+    scanf("%d",&choice);
+    printf("Enter the data: ");
+    scanf("%d",&data);
+    if(choice == 1)
+    {
+        if(size==10)
+        {
+            printf("array is full, You can't insert any data ");
+            return 0;
+        }
+        for(int i= size;i>0;i--)
+        {
+            arr[i]=arr[i-1];
+        }
+        arr[0] = data;
+        size++;
+    }
+    else if(choice == 2)
+    {
+        if(size==10)
+        {
+            printf("array is full, You can't insert any data ");
+            return 0;
+        }
+        arr[size]=data;
+        size++;
+
+    }
+    else if(choice == 3)
+    {
+        if(size==10)
+        {
+            printf("array is full, You can't insert any data ");
+            return 0;
+        }
+        int location;
+        printf("Enter the location where you want to insert: ");
+        scanf("%d",&location);
+        for(int i=size; i>location;i--){
+            arr[i]=arr[i-1];
+        }
+        arr[location]=data;
+        size++;
+    }
+    else{
+        printf("Enter the valid choice 1,2,3....");
+    }
+    // updated array
+    printf("Updated array: ");
+    for(int i= 0; i<size; i++)
+    {   
+        printf("\t %d",arr[i]);
+    }
+    return 0;
+}

01 .Basics codes/eg.exe

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+#include<stdio.h>
+main(){
+int a;
+printf("enter the year");
+scanf("%d",&a);
+if(a%4==0){
+    printf("it is leap year");
+
+}else{
+    printf("it is not leap year");
+}
+return 0;
+}

01 .Basics codes/even.exe

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+#include <stdio.h>
+int main()
+{
+    int num, r;
+    printf("Enter n number :");
+    scanf("%d", &num);
+    printf("Enter r number :");
+    scanf("%d", &r);
+    int nfact = 1;  // n!
+    int rfact = 1;  // r!
+    int nrfact = 1; // n-r!
+    for (int i = 1; i <= num; i++)
+    {
+        nfact = nfact * i;
+    }
+    for (int i = 1; i <= r; i++)
+    {
+        rfact = rfact * i;
+    }
+    for (int i = 1; i <= (num - r); i++)
+    {
+        nrfact = nrfact * i;
+    }
+    int ncr = nfact / (rfact * nrfact);
+    printf("%d", ncr);
+    return 0;
+}

01 .Basics codes/first.c

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+#include<stdio.h>
+int main(int argc, char const *argv[])
+{int num1 , num2;
+    printf("enter num1: ");
+    scanf("%d",&num1);
+printf("enter num2: ");
+    scanf("%d",&num2);
+    int choice;
+    printf("choose the num for  addtion=1 for multiply =2 for dividion=3 for subtration=4");
+    scanf("%d",&choice);
+    if (choice==1){
+        int c=num1+num2;
+        printf("%d",c);
+
+    }
+    else if (choice==2)
+    {
+        int c=num1*num2;
+        printf("%d",c);
+
+    }
+    else if (choice==3){
+        int c=num1/num2;
+        printf("%d",c);
+
+    }
+    else if (choice==4){
+        int c=num1-num2;
+        printf("%d",c);
+
+    }if(choice==0){
+        printf("invalid choice");
+    }
+    return 0;
+}

01 .Basics codes/first.exe

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+#include<stdio.h>
+int main()
+{
+   printf("\n *");
+   printf("\n * *");
+   printf("\n * * *");
+   printf("\n * * * *");
+   printf("\n * * * * *");
+return 0;
+
+}

01 .Basics codes/hello.c

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+#include<stdio.h>
+int main(){
+    int row,i,j;
+    printf("enter the numbefr of rows:");
+    scanf("%d",&row);
+    for(i=1; i<=row; i++){
+for(j=1; j<i; j++){
+    printf("*");
+}
+prinf("\n");
+    }
+return 0;
+
+}

01 .Basics codes/hello.exe

@@ -0,0 +1,19 @@
+#include<stdio.h>
+int main(){
+    int row,i,j;
+    printf("enter the numbefr of rows:");
+    scanf("%d",&row);
+    for(i=1; i<=row; i++){
+for(j=i; j<row; j++){
+    printf("");
+}
+for  (j = 1; j<=i; j++)
+{
+   printf("*");
+}
+
+printf("\n");
+    }
+return 0;
+
+}

01 .Basics codes/lp.c

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+#include<stdio.h>
+int main(){
+    int row,i,j;
+    printf("enter the  number of rows :");
+    scanf("%d",&row);
+    for (i = 1; i <=row; i++)
+    {
+        for ( j = 1; j<=row+1-i; j++)
+        {
+            printf("*");
+        }
+        printf("\n");
+    }
+    
+}

01 .Basics codes/lp.exe

@@ -0,0 +1,15 @@
+#include<stdio.h>
+int main(){
+    int row , i,j;
+    printf("enter the no of rows:");
+    scanf("%d",&row);
+    for (i = 1; i <=row; i++)
+    {
+        for ( j = 1; j<=row+1-i; j++)
+        {
+            printf("%d",j);
+        }printf("\n");
+        
+    }
+    
+}

01 .Basics codes/ncr.c

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+#include<stdio.h>
+int main(){
+int num;
+
+
+printf("Enter the number : ");
+scanf("%d",&num);
+int temp=num;
+if(num<0){
+    return 0;
+}
+int res=0;
+
+for(int i=1; num>0; i++){
+    res=res*10;
+    res=res+(num%10);
+    
+    num=num/10;
+}
+printf("%d\n",res);
+if(temp==res){
+    printf("The number is palindrome");
+}
+else{
+    printf("The number is not palindrome");
+}
+    return 0;
+}