Question:Sum of Fibonacci series in c 

#include<stdio.h>
int main(){
    int k,r;
    long int i=0,j=1,f;
    long int sum = 1;

    printf("Enter the number range: ");
    scanf("%d",&r);

    for(k=2;k<r;k++){
         f=i+j;
         i=j;
         j=f;
         sum = sum + j;
    }

    printf("Sum of Fibonacci series is: %ld",sum);
  
    return 0;
}
Sample output:
Enter the number range: 4
Sum of Fibonacci series is: 4

Question:C program to find the factorial of a given number 

#include<stdio.h>
int main(){
  int i=1,f=1,num;

  printf("Enter a number: ");
  scanf("%d",&num);

  while(i<=num){
      f=f*i;
      i++;
  }

  printf("Factorial of %d is: %d",num,f);
  return 0;
}
Sample output:
Enter a number: 5
Factorial of 5 is: 120

Question:Factorial program in c using for loop 

#include<stdio.h>
int main(){
  int i,f=1,num;

  printf("Enter a number: ");
  scanf("%d",&num);

  for(i=1;i<=num;i++)
      f=f*i;

  printf("Factorial of %d is: %d",num,f);
  return 0;
}

Question:Factorial program in c using pointers 

#include<stdio.h>

void findFactorial(int,int *);
int main(){
  int i,factorial,num;

  printf("Enter a number: ");
  scanf("%d",&num);

  findFactorial(num,&factorial);
  printf("Factorial of %d is: %d",num,*factorial);

  return 0;
}

void findFactorial(int num,int *factorial){
    int i;

    *factorial =1;

    for(i=1;i<=num;i++)
      *factorial=*factorial*i;
}

Question:Factorial program in c using function 

#include<stdio.h>

int findFactorial(int);
int main(){
  int i,factorial,num;

  printf("Enter a number: ");
  scanf("%d",&num);

  factorial = findFactorial(num);
  printf("Factorial of %d is: %d",num,factorial);

  return 0;
}

int findFactorial(int num){
    int i,f=1;

    for(i=1;i<=num;i++)
      f=f*i;

     return f;
}
Sample output:
Enter a number: 8
Factorial of 8 is: 40320

Question:Factorial series in c 

#include<stdio.h>
int main(){
  long f=1;
  int i,num,min,max;

  printf("Enter the minimum range: ");
  scanf("%d",&min);

  printf("Enter the maximum range: ");
  scanf("%d",&max);

  printf("Factorial series in given range: ");
  for(num=min;num<=max;num++){
    f=1;

    for(i=1;i<=num;i++)
      f=f*i;

    printf("%ld ",f);
  }

  return 0;
}
Sample output:
Enter the minimum range: 1
Enter the maximum range: 10
Factorial series in given range: 1 2 6 24 120 720 5040 40320 362880 3628800

Question:Write a c program to print Floyd’s triangle 

#include<stdio.h>

int main(){

  int i,j,r,k=1;

  printf("Enter the range: ");
  scanf("%d",&r);

  printf("FLOYD'S TRIANGLE\n\n");
  for(i=1;i<=r;i++){
      for(j=1;j<=i;j++,k++)
           printf(" %d",k);
      printf("\n");
  }

  return 0;
}
Sample output:
Enter the range: 10
FLOYD'S TRIANGLE

 1
 2 3
 4 5 6
 7 8 9 10
 11 12 13 14 15
 16 17 18 19 20 21
 22 23 24 25 26 27 28
 29 30 31 32 33 34 35 36
 37 38 39 40 41 42 43 44 45
 46 47 48 49 50 51 52 53 54 55

Question:C program to generate Pascal triangle 

#include<stdio.h>

long fact(int);
int main(){
    int line,i,j;

    printf("Enter the no. of lines: ");
    scanf("%d",&line);

    for(i=0;i<line;i++){
         for(j=0;j<line-i-1;j++)
             printf(" ");

         for(j=0;j<=i;j++)
             printf("%ld ",fact(i)/(fact(j)*fact(i-j)));
         printf("\n");
    }
    return 0;
}

long fact(int num){
    long f=1;
    int i=1;
    while(i<=num){
         f=f*i;
         i++;
  }
  return f;
 }
Sample output:
Enter the no. of lines: 8

       1
      1 1
     1 2 1
    1 3 3 1
   1 4 6 4 1
  1 5 10 10 5 1
 1 6 15 20 15 6 1
1 7 21 35 35 21 7 1

Question:Write a c program to print multiplication table 

#include<stdio.h>
int main(){
  int r,i,j,k;
  printf("Enter the number range: ");
  scanf("%d",&r);
  for(i=1;i<=r;i++){
      for(j=1;j<=10;j++)
           printf("%d*%d=%d ",i,j,i*j);
      printf("\n");
  }
  return 0;
}
Sample Output:
Enter the number range: 5

1*1=1 1*2=2 1*3=3 1*4=4 1*5=5 1*6=6 1*7=7 1*8=8 1*9=9 1*10=10
2*1=2 2*2=4 2*3=6 2*4=8 2*5=10 2*6=12 2*7=14 2*8=16 2*9=18 2*10=20
3*1=3 3*2=6 3*3=9 3*4=12 3*5=15 3*6=18 3*7=21 3*8=24 3*9=27 3*10=30
4*1=4 4*2=8 4*3=12 4*4=16 4*5=20 4*6=24 4*7=28 4*8=32 4*9=36 4*10=40
5*1=5 5*2=10 5*3=15 5*4=20 5*5=25 5*6=30 5*7=35 5*8=40 5*9=45 5*10=50

Question:C program to display ASCII values 

#include<stdio.h>
int main(){
  
    int i;
  
    for(i=0;i<=255;i++)
         printf("ASCII value of character %c: %d\n",i,i);

    return 0;
}
Sample Output:
ASCII value of character  : 0
ASCII value of character ☺: 1
ASCII value of character ☻: 2
ASCII value of character ♥: 3
ASCII value of character ♦: 4
ASCII value of character ♣: 5
ASCII value of character ♠: 6
ASCII value of character  : 7
ASCII value of character  : 8
ASCII value of character  :
ASCII value of character  : 10
ASCII value of character ♂: 11
ASCII value of character ♀: 12
ASCII value of character   : 13
ASCII value of character ♫: 14
ASCII value of character ☼: 15
ASCII value of character ►: 16
ASCII value of character ◄: 17
ASCII value of character ↕: 18
ASCII value of character ‼: 19
ASCII value of character ¶: 20
ASCII value of character §: 21
ASCII value of character ▬: 22
ASCII value of character ↨: 23
ASCII value of character ↑: 24
ASCII value of character ↓: 25
ASCII value of character →: 26
ASCII value of character ←: 27
ASCII value of character ∟: 28
ASCII value of character ↔: 29
ASCII value of character ▲: 30
ASCII value of character ▼: 31
ASCII value of character  : 32
ASCII value of character !: 33
ASCII value of character ": 34
ASCII value of character #: 35
ASCII value of character $: 36
ASCII value of character %: 37
ASCII value of character &: 38
ASCII value of character ': 39
ASCII value of character (: 40
ASCII value of character ): 41
ASCII value of character *: 42
ASCII value of character +: 43
ASCII value of character ,: 44
ASCII value of character -: 45
ASCII value of character .: 46
ASCII value of character /: 47
ASCII value of character 0: 48
ASCII value of character 1: 49
ASCII value of character 2: 50
ASCII value of character 3: 51
ASCII value of character 4: 52
ASCII value of character 5: 53
ASCII value of character 6: 54
ASCII value of character 7: 55
ASCII value of character 8: 56
ASCII value of character 9: 57
ASCII value of character :: 58
ASCII value of character ;: 59
ASCII value of character <: 60
ASCII value of character =: 61
ASCII value of character >: 62
ASCII value of character ?: 63
ASCII value of character @: 64
ASCII value of character A: 65
ASCII value of character B: 66
ASCII value of character C: 67
ASCII value of character D: 68
ASCII value of character E: 69
ASCII value of character F: 70
ASCII value of character G: 71
ASCII value of character H: 72
ASCII value of character I: 73
ASCII value of character J: 74
ASCII value of character K: 75
ASCII value of character L: 76
ASCII value of character M: 77
ASCII value of character N: 78
ASCII value of character O: 79
ASCII value of character P: 80
ASCII value of character Q: 81
ASCII value of character R: 82
ASCII value of character S: 83
ASCII value of character T: 84
ASCII value of character U: 85
ASCII value of character V: 86
ASCII value of character W: 87
ASCII value of character X: 88
ASCII value of character Y: 89
ASCII value of character Z: 90
ASCII value of character [: 91
ASCII value of character \: 92
ASCII value of character ]: 93
ASCII value of character ^: 94
ASCII value of character _: 95
ASCII value of character `: 96
ASCII value of character a: 97
ASCII value of character b: 98
ASCII value of character c: 99
ASCII value of character d: 100
ASCII value of character e: 101
ASCII value of character f: 102
ASCII value of character g: 103
ASCII value of character h: 104
ASCII value of character i: 105
ASCII value of character j: 106
ASCII value of character k: 107
ASCII value of character l: 108
ASCII value of character m: 109
ASCII value of character n: 110
ASCII value of character o: 111
ASCII value of character p: 112
ASCII value of character q: 113
ASCII value of character r: 114
ASCII value of character s: 115
ASCII value of character t: 116
ASCII value of character u: 117
ASCII value of character v: 118
ASCII value of character w: 119
ASCII value of character x: 120
ASCII value of character y: 121
ASCII value of character z: 122
ASCII value of character {: 123
ASCII value of character |: 124
ASCII value of character }: 125
ASCII value of character ~: 126
ASCII value of character ⌂: 127
ASCII value of character Ç: 128
ASCII value of character ü: 129
ASCII value of character é: 130
ASCII value of character â: 131
ASCII value of character ä: 132
ASCII value of character à: 133
ASCII value of character å: 134
ASCII value of character ç: 135
ASCII value of character ê: 136
ASCII value of character ë: 137
ASCII value of character è: 138
ASCII value of character ï: 139
ASCII value of character î: 140
ASCII value of character ì: 141
ASCII value of character Ä: 142
ASCII value of character Å: 143
ASCII value of character É: 144
ASCII value of character æ: 145
ASCII value of character Æ: 146
ASCII value of character ô: 147
ASCII value of character ö: 148
ASCII value of character ò: 149
ASCII value of character û: 150
ASCII value of character ù: 151
ASCII value of character ÿ: 152
ASCII value of character Ö: 153
ASCII value of character Ü: 154
ASCII value of character ¢: 155
ASCII value of character £: 156
ASCII value of character ¥: 157
ASCII value of character ₧: 158
ASCII value of character ƒ: 159
ASCII value of character á: 160
ASCII value of character í: 161
ASCII value of character ó: 162
ASCII value of character ú: 163
ASCII value of character ñ: 164
ASCII value of character Ñ: 165
ASCII value of character ª: 166
ASCII value of character º: 167
ASCII value of character ¿: 168
ASCII value of character ⌐: 169
ASCII value of character ¬: 170
ASCII value of character ½: 171
ASCII value of character ¼: 172
ASCII value of character ¡: 173
ASCII value of character «: 174
ASCII value of character »: 175
ASCII value of character ░: 176
ASCII value of character ▒: 177
ASCII value of character ▓: 178
ASCII value of character │: 179
ASCII value of character ┤: 180
ASCII value of character ╡: 181
ASCII value of character ╢: 182
ASCII value of character ╖: 183
ASCII value of character ╕: 184
ASCII value of character ╣: 185
ASCII value of character ║: 186
ASCII value of character ╗: 187
ASCII value of character ╝: 188
ASCII value of character ╜: 189
ASCII value of character ╛: 190
ASCII value of character ┐: 191
ASCII value of character └: 192
ASCII value of character ┴: 193
ASCII value of character ┬: 194
ASCII value of character ├: 195
ASCII value of character ─: 196
ASCII value of character ┼: 197
ASCII value of character ╞: 198
ASCII value of character ╟: 199
ASCII value of character ╚: 200
ASCII value of character ╔: 201
ASCII value of character ╩: 202
ASCII value of character ╦: 203
ASCII value of character ╠: 204
ASCII value of character ═: 205
ASCII value of character ╬: 206
ASCII value of character ╧: 207
ASCII value of character ╨: 208
ASCII value of character ╤: 209
ASCII value of character ╥: 210
ASCII value of character ╙: 211
ASCII value of character ╘: 212
ASCII value of character ╒: 213
ASCII value of character ╓: 214
ASCII value of character ╫: 215
ASCII value of character ╪: 216
ASCII value of character ┘: 217
ASCII value of character ┌: 218
ASCII value of character █: 219
ASCII value of character ▄: 220
ASCII value of character ▌: 221
ASCII value of character ▐: 222
ASCII value of character ▀: 223
ASCII value of character α: 224
ASCII value of character ß: 225
ASCII value of character Γ: 226
ASCII value of character π: 227
ASCII value of character Σ: 228
ASCII value of character σ: 229
ASCII value of character µ: 230
ASCII value of character τ: 231
ASCII value of character Φ: 232
ASCII value of character Θ: 233
ASCII value of character Ω: 234
ASCII value of character δ: 235
ASCII value of character ∞: 236
ASCII value of character φ: 237
ASCII value of character ε: 238
ASCII value of character ∩: 239
ASCII value of character ≡: 240
ASCII value of character ±: 241
ASCII value of character ≥: 242
ASCII value of character ≤: 243
ASCII value of character ⌠: 244
ASCII value of character ⌡: 245
ASCII value of character ÷: 246
ASCII value of character ≈: 247
ASCII value of character °: 248
ASCII value of character ∙: 249
ASCII value of character ·: 250
ASCII value of character √: 251
ASCII value of character ⁿ: 252
ASCII value of character ²: 253
ASCII value of character ■: 254
ASCII value of character  : 255