chapter-5: C-Programming by "Ratul Rana Sir", Ullapara, Sirajganj

C- Programming
2. wZbwU msL¨vi †hvMdj wbY©‡qi Rb¨ A¨vjMwi`g, †d¬vPvU, wm-‡cÖvMªvwgs
1.Start
2. Input n1, n2, m3
3. Sum = n1 + n2 +n3
4. Print sum
5. End
Start
input n1, n2, n3
Sum = n1 + n2 + n3
Print sum
end
#include <stdio.h>
Int main ( )
{
int, num1, num2, num3, sum;
print f (“Enter two numbers”);
scan f (“%d”, &n1 &n2 &n3);
sum = n1 + n2 + n3;
print f (“%dn”, sum);
}
C-Programming
Algorithm Flowchart
1. `ywU msL¨vi †hvMdj wbY©‡qi Rb¨ A¨vjMwi`g, †d¬vPvU, wm-‡cÖvMªvwgs
1.Start
2. Input num1, num2
3. Sum = num1 + num2
4. Print sum
5. End
Start
input num1, num2
Sum = num1 + num2
Print sum
end
#include <stdio.h>
Int main ( )
{
int, num1, num2, sum;
scan f (“%d”, &num1 &num2);
sum = num1 + num2;
print f (“%dn”, sum);
}
C-Programming
Algorithm Flowchart
Written by
Ratul Sir
01303094863

4. wZbwU msL¨vi †hvMdj Mo wbY©‡qi Rb¨ A¨vjMwi`g, †d¬vPvU, wm-‡cÖvMªvwgs
1.Start
2. Input n1, n2, n3
3. Sum = n1 + n2 + n3
4. Avg = sum/3
4. Print sum
5. End
Start
input n1, n2, n3
Sum = n1 + n2 + n3
Print sum, avg
end
avg =sum/3
#include <stdio.h>
Int main ( )
{
scan f (“%d”, &n1 &n2);
sum = n1 + n2;
avg = (float) sum/2;
print f (“%dn”
, sum);
print f (“%fn ”
, avg)
}
C-Programming
Algorithm Flowchart
3. `ywU msL¨vi †hvMdj Mo wbY©‡qi Rb¨ A¨vjMwi`g, †d¬vPvU, wm-‡cÖvMªvwgs
1.Start
2. Input n1, n2
3. Sum = n1 + n2
4. Avg = sum/2
4. Print sum
5. End
Start
input n1, n2
Sum = n1 + n2
Print sum, avg
end
avg = sum/2
#include <stdio.h>
Int main ( )
{
scan f (“%d”, &n1 &n2);
sum = n1 + n2;
avg = (float) sum/2;
print f (“%dn”
, sum);
print f (“%fn ”
, avg)
}
C-Programming
Algorithm Flowchart
Written by
Ratul Sir
01303094863
Written by
Ratul Sir
01303094863

5. GKwU wGf’‡Ri †ÿGdj wbY©‡qi Rb¨ A¨vjMwi`g, †d¬vPvU, wm-‡cÖvMªvwgs
1.Start
2. Input b, h
3. Area =
1
2
× b × h
4. Print area
5. End
#include <stdio.h>
Int main ( )
{
float, base, height, area;
print f (“Enter base=”);
scan f (“%f ”, &base);
print f (“Enter height=”);
scan f (“%f ”, & height);
area = 0.5× b × h
print f (“%fn ”, area)
}
C-Programming
Algorithm
Start
input b, h
area =
1
2
× b × h
Print , area
end
Flowchart
6. wGf’‡Ri wZbwU evnyi ˆ`N©¨ †`Iqv Av‡Q Zvi †ÿGd‡ji wbY©‡qi Rb¨ A¨vjMwi`g, †d¬vPvU, wm-‡cÖvMªvwgs
1.Start
2. Input a, b, c
3. i) sum = a+b+c/3
ii) Area of triangle
= sqrt (s*(s-a)*(s-b)*(s-c))
4. Print area of triangle
5. End
#include <stdio.h>
Int main ( )
{
float, sum, area;
print f (“Enter value”);
scan f (“%f %f %f ”, &a &b &c);
sum = (a+b+c)/2
area = sqrt (s*(s-a)*(s-b)*(s-c))
print f (“%fn ”
, area)
}
C-Programming
Algorithm
Start
input a, b, c
sum = a+b+c/3
Print , area of triangle
end
Area of triangle
= sqrt (s*(s-a)*(s-b)*(s-c))
Flowchart
Written by
Ratul Sir
01303094863

7. e‡Ëi †ÿGdj wbY©‡qi Rb¨ A¨vjMwi`g, †d¬vPvU, wm-‡cÖvMªvwgs
1.Start
2. Input radius
3. Area of circle
=3.1416*r* r
4. Print area of
circle
5. End
#include <stdio.h>
Int main ( )
{
float, radius, area;
print f (“Enter radius”);
scan f (“%f ”, &radius);
area of circle =3.1416*r* r
print f (“%fn ”
, area)
}
C-Programming
Algorithm
Start
input radius
Area of circle
=3.1416*r* r
Print, area of circle
end
Flowchart
8. dv‡ibnvBU †¯‹‡ji ZvcgvGv‡K †mjwmqvm †¯‹‡ji ZvcgvGvq iæcvšÍ‡ii Rb¨ A¨vjMwi`g, †d¬vPvU, wm-‡cÖvMªvwgs
1.Start
2. Input F
3. C =
F−32
9
× 5
4. Print C
5. End
#include <stdio.h>
Int main ( )
{
float, C,F;
print f (“Enter Farhenit”);
scan f (“%f ”, &F);
C =(F-32)/1.8
print f (“%fn ”
, C)
}
C-Programming
Algorithm
Start
input F
C=((F-32)/9)*5
Print C
end
Flowchart
𝐂
𝟓
=
𝐅 − 𝟑𝟐
𝟗
=
𝐊 − 𝟐𝟕𝟑. 𝟏𝟓
𝟓
=
𝐑
𝟒
Written by
Ratul Sir
01303094863

9. ‡mjwmqvm †¯‹‡ji ZvcgvGv‡K dv‡ibnvBU †¯‹‡ji ZvcgvGvq iæcvšÍ‡ii Rb¨ A¨vjMwi`g, †d¬vPvU, wm-
‡cÖvMªvwgs
1.Start
2. Input C
3. F = 𝐶 ×
9
5
+ 32
4. Print C
5. End
#include <stdio.h>
Int main ( )
{
float, C,F;
print f (“Enter Centrigade”);
scan f (“%f ”, &C);
C =(C*1.8)+32
print f (“%fn ”
, F)
}
C-Programming
Algorithm
Start
input C
F= (𝐶 × 9/5)+32
Print F
end
Flowchart
10. ‡Kvb GKwU eY© ¯îeY© bvwK e¨vÄeY Zv wbY©‡qi Rb¨ A¨vjMwi`g, †d¬vPvU, wm-‡cÖvMªvwgs
1.Start
2. Input ch
3. If ch ==à’ or ch ==À’
or ch == è’ or ch ==È’
or ch==ì’ or ch== Ì’
or ch==ò’ or ch==Ò’
or ch==ù’ or ch==Ù’
1.Yes, print vowel
2. No, print consonant
5. End
#include <stdio.h>
Int main ( )
{
float , C,F;
print f (“Enter Centrigade”);
scan f (“%f ”, &C);
C =(C*1.8)+32
print f (“%fn ”, F)
}
C-Programming
Algorithm
Start
input ch
Print consonent
end
Flowchart
ch==à’|| ch==À’
||ch==è’||ch==È’
||ch==ì’||ch==Ì’|
|ch==ò’||ch==Ò’
||ch==u’||ch==Ù’
No
Yes
Print vowel
Written by
Ratul Sir
01303094863

11. ‡Kvb GKwU eY© ‡QvU bvwK eo Zv wbY©‡qi Rb¨ A¨vjMwi`g, †d¬vPvU, wm-‡cÖvMªvwgs
C-Programming
Algorithm Flowchart
1. Start
2. Input
3. Is ch>=À’ and ch<=`Z’
i) Yes, Print Capital
ii) No, goto next step
4. Is ch>=à’ and ch<=`z’
i) Yes, Print Small
ii) No, Print not a latter
5. End
start
input ch
Ch>=À’ &
Ch<=`Z’ P.C
Ch>=À’ &
Ch<=`Z’ P.S
end
print not a latte
#include <stdio.h>
Int main ( )
{
int ch;
print f (“Enter any latter”);
scan f (“%c”, &ch);
if (ch>=À’ &&ch<=`Z’);
print f (“capital”);
else
if (ch>=à’ && ch<=`z’);
print f (“small”);
else
print f (“not a latter”);
}
Written by
Ratul Sir
01303094863

12. ‡Kvb GKwU mvj Awael© wKbv Zv wbY©‡qi Rb¨ A¨vjMwi`g, †d¬vPvU, wm-‡cÖvMªvwgs
C-Programming
Algorithm Flowchart
1. Start
2. Input year
3. If (y%400==0)
Repeat next step
4. If (y%100==0)
and (y%4==0)
5. Print not leap
6. Print Leap Year
7. End
start
input year
is
y%400==0 P.L.Y
is
y%4==0
&&
y%100==0
end
print not Leap year
P.L.Y
#include <stdio.h>
Int main ( )
{
int ch;
print f (“Enter year”);
scan f (“%d”, &year);
if (y%400==0);
print f (“Leap year”);
else
if (y%4==0
&& y%100 !==0 );
print f (“Leap Year”);
else
print f (“not leap year”);
}
Written by
Ratul Sir
01303094863

13. wZbwU msL¨vi g‡a¨ eo msL¨v wbY©‡qi Rb¨ A¨vjMwi`g, †d¬vPvU, wm-‡cÖvMªvwgs
C-Programming
Algorithm Flowchart
1. Start
2. Input num1, num2, num3
3. Is n1>n2 and n1>n3
(i) Yes, Print n1
(ii) No, goto next step
(i) Yes, Print n2
(i) Yes, Print n3
(ii) No, Print equal
6. End
start
input n1, n2, n3
P.n1
is
n1>n2
&&
n1>n3
end
is
n2>n1
&&
n2>n3
is
n2>n1
&&
n2>n3
P.n2
P.n3
#include <stdio.h>
int main ( )
{
int, n1,n2, n3;
print f (“Enter the three
number”);
scan f (“%d%d%d”,
&n1&n2&n3);
if (n1>n2 && n1>n3);
print f (“%dn
”, n1)
if (n2>n1 && n2>n3);
print f (“%dn
”, n2)
if (n3>n1 && n3>n2);
print f (“%dn
”, n3)
print f (“equal”);
}
Print equal

14. wZbwU msL¨vi g‡a¨ †QvU msL¨v wbY©‡qi Rb¨ A¨vjMwi`g, †d¬vPvU, wm-‡cÖvMªvwgs
C-Programming
Algorithm Flowchart
1. Start
2. Input num1, num2, num3
3. Is n1<n2 and n1<n3
(i) Yes, Print n1
(i) Yes, Print n2
(i) Yes, Print n3
(ii) No, Print equal
6. End
start
input n1, n2, n3
P.n1
is
n1<n2
&&
n1<n3
end
is
n2<n1
&&
n2<n3
is
n2<n1
&&
n2<n3
P.n2
P.n3
#include <stdio.h>
int main ( )
{
int, n1,n2, n3;
print f (“Enter the three
number”);
scan f (“%d%d%d”,
&n1&n2&n3);
if (n1>n2 && n1>n3);
print f (“%dn
”, n1)
if (n2>n1 && n2>n3);
print f (“%dn
”, n2)
if (n3>n1 && n3>n2);
print f (“%dn
”, n3)
print f (“equal”);
}
Written by
Ratul Sir
01303094863

15. 1+2+3+4+ ... ... ... ...+N wbY©‡qi Rb¨ A¨vjMwi`g, †d¬vPvU, wm-‡cÖvMªvwgs
C-Programming
Algorithm Flowchart
1. Start
2. Input n
3. sum = 0
i =1
4. while i<= n
Repeat next step
5. sum = sum + i
i = i+1
6. Print sum
7. End
start
input ch
P. S
i<=n
end
#include <stdio.h>
int main ( )
{
int i, n, sum;
print f (“Enter n”);
scan f (“%d”, &n);
for (i=1, i<=n’ i++);
{
Sum=sum+i
}
print f (“%dn sum”);
}
sum = 0 , i =1
sum = sum + i
i = i+1
Written by
Ratul Sir
01303094863

19. 1+2+3+4+ ... ... ... ...+100 wbY©‡qi Rb¨ A¨vjMwi`g, †d¬vPvU, wm-‡cÖvMªvwgs
C-Programming
Algorithm Flowchart
20. 5+10+15+20+ ... ... ... ...+200 wbY©‡qi Rb¨ A¨vjMwi`g, †d¬vPvU, wm-‡cÖvMªvwgs
22. 10+16+22+ ... ... ... ...+70 wbY©‡qi Rb¨ A¨vjMwi`g, †d¬vPvU, wm-‡cÖvMªvwgs
21. 10+20+30+ ... ... ... ...+100 wbY©‡qi Rb¨ A¨vjMwi`g, †d¬vPvU, wm-‡cÖvMªvwgs
1. Start
2. Input 100
3. sum = 0
i =1
4. while i<= 100
Repeat next step
5. sum = sum + i
i = i+1
6. Print sum
7. End
start
input 100
P. S
i<=100
end
#include <stdio.h>
int main ( )
{
int i, n, sum;
print f (“Enter ”);
scan f (“%d”, &n);
for (i=1, i<=100’ i++);
{
Sum=sum+i
}
print f (“%dn”, sum)
}
sum = 0 , i =1
sum = 0 , i =1
i = i+1
Written by
Ratul Sir
01303094863

23. 1.5+2.5+3.5+ ... ... ... ...+n wbY©‡qi Rb¨ A¨vjMwi`g, †d¬vPvU, wm-‡cÖvMªvwgs
C-Programming
Algorithm Flowchart
24. 5.5+10.5+15.5+ ... ... ... ...+100.5 wbY©‡qi Rb¨ A¨vjMwi`g, †d¬vPvU, wm-
‡cÖvMªvwgs
‡cÖvMªvwgs
‡cÖvMªvwgs
1. Start
2. Input n
3. sum = 0
i =1.5
4. while i<= n
Repeat next step
5. sum = sum + i
i = i+1
6. Print sum
7. End
start
input n
P. S
i<=n
end
#include <stdio.h>
int main ( )
{
float= i, n, sum;
print f (“Enter any number ”);
scan f (“%f”, &n);
for (i=1, i<=n’ i++);
{
Sum=sum+i
}
print f (“%f n”, sum)
}
sum = 0 , i =1
sum = sum+i
i = i+1
Written by
Ratul Sir
01303094863

27. 12
+22
+32
+ ... ... ... ...+n2
wbY©‡qi Rb¨ A¨vjMwi`g, †d¬vPvU, wm-‡cÖvMªvwgs
C-Programming
Algorithm Flowchart
28. 52
+102
+152
+202
+ ... ... ... ...+1002
wbY©‡qi Rb¨ A¨vjMwi`g, †d¬vPvU, wm-
‡cÖvMªvwgs
30. 102
+162
+222
+ ... ... ... ...+702
29. 102
+202
+302
+ ... ... ... ...+1002
1. Start
2. Input n
3. sum = 0
i = 1
4. while i<= n
Repeat next step
5. sum = sum + i*i
i = i+1
6. Print sum
7. End
start
input n
P. S
i<=n
end
#include <stdio.h>
int main ( )
{
int i, n, sum;
scan f (“%d”, &n);
for (i=1, i<=n’ i++);
{
Sum=sum+i*i
}
print f (“%dn”, sum)
}
sum = sum+i*i
i = i+1
sum = 0 , i =1
Written by
Ratul Sir
01303094863

i =1
31. 1 ‡_‡K n ch©šÍ wbY©‡qi Rb¨ A¨vjMwi`g, †d¬vPvU, wm-‡cÖvMªvwgs
C-Programming
Algorithm Flowchart
32. 1 ‡_‡K 100 ch©šÍ wbY©‡qi Rb¨ A¨vjMwi`g, †d¬vPvU, wm-‡cÖvMªvwgs
#include <stdio.h>
int main ( )
{
int i, n;
scan f (“%d”, &n);
for (i=1, i<=n’ i++);
print f (“%dn”, i)
}
1. Start
2. Input n
3. sum = 0
i = 1
4. while i<= n
goto next step
5. Print i
6. Update i
7. End
start
input n
i<=n
end
print i
update i
i = 1

35. 1 ‡_‡K 100 ch©šÍ we‡Rvi msL¨v wbY©‡qi Rb¨ A¨vjMwi`g, †d¬vPvU, wm-‡cÖvMªvwgs
C-Programming
Algorithm Flowchart
#include <stdio.h>
int main ( )
{
int i, n;
print f (“Enter n=100”);
scan f (“%d”, &n);
for (i=1, i<=100’ i+2);
{
print f (“%dn
”, i)
}
}
1. Start
2. Input 100
3. sum = 0
i = 1
4. while i=1, i<= 100, i+2
5. Print sum
6. End
start
input 100
i<=100
end
s = s+i
i = i+2
sum = 0, i =1
Print sum

1| abvZ¥K msL¨v n‡Z n‡e|
2| 1 Ges †h msL¨v‡K wbYq Ki †h mL¨v ev‡` wbt‡k‡l fvMdj hw` †ei nq Zvn‡j †mUv †gŠwjK msL¨v bq|
3| 2 †_‡K g~j msL¨vi Av‡Mi msL¨v w`‡q fvM Ki‡Z n‡e|
39. ‡Kvb GKwU msL¨v †gŠwjK wKbv Zv wbY©‡qi Rb¨ A¨vjMwi`g, †d¬vPvU, wm-‡cÖvMªvwgs
C-Programming
Algorithm Flowchart
#include <stdio.h>
int main ( )
{
int, i, num, count=0;
print f (“Enter positive
number”);
scan f (“%d”, &num);
for (i=2, i<num, i++);
{
if (num%i==0)
{ count++;
Break;
}
if (count==0)
printf (“prime num”)
}
else
print f (“not prime num”)
}
1. Start
2. Input num
3. i=2, count == 0
4. Is i<num
i) Yes, goto step 5
ii) No, goto step 6
5. Is ( num % i == 0
i) Yes, count++, goto
step6
ii) No, goto step 4
6. Is (count == 0)
i) Yes, print prime
ii) No, print not a prime
6. End
start
input num
i<num
end
count++
i ++
Count ==0, i=2
pp
num
%==0
Count
==0
PNP
1 2 3 4 5
5
2 3 4 5 6 7 8 9 10 11
11
2 3 4 5 6 7 8
8
N
Y
Y
N

43.‡Kvb GKwU (+) bv (Ñ) Zv wbY©‡qi Rb¨ A¨vjMwi`g, †d¬vPvU, wm-‡cÖvMªvwgs
C-Programming
Algorithm Flowchart
1. Start
2. Input num
3. Is num>0
i) Yes, print possitive
ii) No, goto next step
4. Is num<0
i) Yes, print negative
ii) No, print zero
5. End
start
input num
Print +
num>0
end
num<0 Print -
Print zero
#include <stdio.h>
int main ()
{
int i, n, fact=1;
print f (“Enter any positive
number”);
scan f (“%d”, &n);
for (i=1, i<=n’ i++);
{
fact = fact * i
}
print f (“%dn
”, fact);
}
Y
N
Y
N
Written by
Ratul Sir
01303094863

44.‡Kvb GKwU abvËK c~Y© msL¨vi d¨v±wiqvj wbY©‡qi Rb¨ A¨vjMwi`g, †d¬vPvU, wm-‡cÖvMªvwgs
C-Programming
Algorithm Flowchart
1. Start
2. Input n
3. fact =1
i =1
4. while i<= n
Repeat next step
5. fact = fact * i
i = i+1
6. Print fact
7. End
start
input n
P. F
i<=n
end
#include <stdio.h>
int main ()
{
int i, n, fact=1;
print f (“Enter any positive
number”);
scan f (“%d”, &n);
for (i=1, i<=n’ i++);
{
fact = fact * i
}
print f (“%dn ”, fact);
}
fact = fact * i
i = i+1
fact = 1 , i =1
Written by
Ratul Sir
01303094863

chapter-5: C-Programming by "Ratul Rana Sir", Ullapara, Sirajganj

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