EEM-119 Algoritma ve Programlama I Dersi

2022-2023 Güz Dönemi Ders 6

C Programlama örnekleri

#include <stdio.h>
int main(){
  int i, j;
  float x, y;
  i=10;
  j=20;
  x=43.289;
  y=5551;
  printf("i=%d , j=%d, x=%f, y=%f",i, j, x, y);
}

    i=10 , j=20, x=43.289001, y=5551.000000

#include <stdio.h>
int main(){
  int i, j;
  i=10;
  j=20;
  printf("i=%-5d",j);
  printf("i=%5d\n",i);
}

    i=20   i=   10

#include <stdio.h>
int main(){
  int i, j;
  i=1000000;
  j=20;
  printf("j=%.5d\n",j);
  printf("i=%.5d",i);  
}

    j=00020
    i=1000000

#include <stdio.h>
int main(){
  int  j;
  j=20;
  printf("j=%7.5d\n",j);
}

    j=  00020

#include <stdio.h>
int main(){
  float x, y;
  x=43.289;
  y=5551;
  printf("x=%.7f, y=%.2f", x, y);
}

    x=43.2890015, y=5551.00

#include <stdio.h>
int main(){
  float x, y;
  x=43.289;
  y=5551;
  printf("x=%20.7f, y=%9.2f", x, y);
}

    x=          43.2890015, y=  5551.00

#include <stdio.h>
int main(){
  printf("basit\thiza\ticin\n");
  printf("ters\tslash\tt kullanilabilir");
}  

    basit	hiza	icin
    ters	slash	t kullanilabilir

#include <stdio.h>
int main(){
  int a,b,c;
  printf("birinci sayiyi giriniz: ");
  scanf("%d",&a);
  printf("ikinci sayiyi giriniz: ");
  scanf("%d",&b);
  c=a+b;
  printf("sayilarin toplami: %d",c);  
}

    birinci sayiyi giriniz: 
     10

    ikinci sayiyi giriniz: 
     20
    
    sayilarin toplami: 30

#include <stdio.h>
int main(){
  float yaricap, pi=3.14, alan;
  printf("Yaricapi giriniz: ");
  scanf("%f",&yaricap);
  alan = pi * yaricap * yaricap;
  printf("alan: %f", alan);
}

    Yaricapi giriniz: 
     10

    alan: 314.000000

#include <stdio.h>
#define PI 3.14
int main(){
  float yaricap, alan;
  printf("Yaricapi giriniz: ");
  scanf("%f",&yaricap);
  alan = PI * yaricap * yaricap;
  printf("alan: %f", alan);
}

    Yaricapi giriniz: 
     10

    alan: 314.000000

#include <stdio.h>
int main(){
  float a,b,c,d;
  printf("birinci sayiyi giriniz (x/y): ");
  scanf("%f/%f",&a,&b); 
  printf("ikinci sayiyi giriniz (x/y): ");
  scanf("%f/%f",&c,&d);
  printf("sonuc: %.2f/%.2f", a*d+b*c,b*d);
}

    birinci sayiyi giriniz (x/y): 
     3/5

    ikinci sayiyi giriniz (x/y): 
     2/7

    sonuc: 31.00/35.00

• işlem önceliği:

i+j*k   -> i+(j*k)
-i + -j -> (-i) + (-j)
-+i     -> (-(+i))

#include <stdio.h>
int main(){
  int i;
  float f;
  i=72.9999;
  f=134;
  printf("i: %d, f: %f",i,f);   
}

    i: 72, f: 134.000000

#include <stdio.h>
int main(){
  int i,j,k;
  i=j=k=10; // (i=j), (j=k) ,(k=10)
  printf("i: %d, j: %d k:%d",i,j,k);   
}

    i: 10, j: 10 k:10

#include <stdio.h>
int main(){
  int i;
  float f;
  f=i=33.99;  
  printf("i: %d, f: %f ",i,f);   
}

    i: 33, f: 33.000000 

#include <stdio.h>
int main(){
  int i=1,j=2,k=0;
  k= 1+ (i=j);
  
  printf("i: %d, j: %d, k:%d ",i, j, k);   
}

    i: 2, j: 2, k:3 

• yanlis degisken tanimlamalari

int degisken 1;
int 1degisken;
int 1 degisken;
int degisken..1;
int değişken;
int DEGİSKEN;

• dogru degisken tanimlamalari

int degisken1;
int degisken_1;
int _degisken;
int _1degisken;
int bu_degisken;
int buDegisken;
int Bu1Degisken;
int BUDEGISKEN;

• yanlis atamalar

1=a;   // doğrusu: a=1;
1+a=b; // doğrusu: b=a+1;
-i=j;  // doğrusu: i=-j;

#include <stdio.h>
int main(){
  int i=100,j=20,k=30;
  i += j; //i=i+j;
  printf("%d\n",i);
  i += 20; //i=i+j;
  printf("%d\n",i);
  i -= k; //i=i-k;
  printf("%d\n",i);
  i *= j; // i=i*j;
  printf("%d\n",i);
  i /= k; // i=i/k;
  printf("%d\n",i);
  j=7;
  i %= j; // i=i%j
  printf("%d\n",i);
  return 0;
}

    120
    140
    110
    2200
    73
    3

#include <stdio.h>
int main(){
  int a=10, b=20;
  a += b++;
  printf("%d %d\n",a,b);
  a += ++b;
  printf("%d %d\n",a,b);
  return 0;
}

    30 21
    52 22

#include <stdio.h>
int main(){
  int a=10, b=20, c=30;
  c+=a++ + ++b;
  printf("%d %d %d\n",a,b,c);
  return 0;
}

    11 21 61

#include <stdio.h>
int main(){
  float a=100, b=200, c;
  float x, y=1200, z=900;
  c=a+b;
  x=y*z;
  printf("%10.2f + %10.2f = %10.2f\n",a,b,c);
  printf("%10.2f x %10.2f = %10.2f",y,z,x);
  return 0;
}

        100.00 +     200.00 =     300.00
       1200.00 x     900.00 = 1080000.00

#include <stdio.h>
int main(){ 
  int a,b,c;
  printf("birinci sayi: ");
  scanf("%d",&a);
  printf("ikinci sayi: ");
  scanf("%d",&b);
  printf("ucuncu sayi: ");
  scanf("%d",&c);  
  printf("girilen sayilarin toplami: %d\n",a+b+c);
  printf("girilen sayilarin ortalamasi: %d",(a+b+c)/3);
  return 0;
}

    birinci sayi: 
     12

    ikinci sayi: 
     14

    ucuncu sayi: 
     20

    girilen sayilarin toplami: 46
    girilen sayilarin ortalamasi: 15

#include <stdio.h>
int main(){ 
  float a,b,c;
  printf("uc sayi giriniz: ");
  scanf("%f%f%f",&a,&b,&c);
  printf("girilen sayilarin toplami: %.2f\n",a+b+c);
  printf("girilen sayilarin ortalamasi: %.2f",(a+b+c)/3);
  return 0;
}

<pre>
uc sayi giriniz: 
 12 14 20

girilen sayilarin toplami: 46.00
girilen sayilarin ortalamasi: 15.33

</pre>

• Dikdortgenin alanini bulan program

#include <stdio.h>
int main(){
  double kenar1, kenar2;
  double alan;
  printf("birinci kenari giriniz: ");
  scanf("%lf",&kenar1);
  printf("ikinci kenari giriniz: ");
  scanf("%lf",&kenar2);
  alan= kenar1*kenar2;
  printf("hesaplanan alan: %.2lf",alan);  
  return 0;
}

    birinci kenari giriniz: 
     10

    ikinci kenari giriniz: 
     20

    hesaplanan alan: 200.00

• kurenin hacmi

#include <stdio.h>
#define PI 3.14
int main(){
  double r;
  double hacim;
  printf("yaricapi giriniz: ");
  scanf("%lf",&r);
  hacim=(4./3)*PI*r*r*r;
  printf("hesaplanan hacim: %.2lf",hacim);
  return 0;
}

    yaricapi giriniz: 
     10

    hesaplanan hacim: 4186.67

#include <stdio.h>
#define PI (22./7)
int main(){
  double r;
  double hacim;
  printf("yaricapi giriniz: ");
  scanf("%lf",&r);
  hacim=(4./3)*PI*r*r*r;
  printf("hesaplanan hacim: %.2lf",hacim);
   return 0;
}

    yaricapi giriniz: 
     10

    hesaplanan hacim: 4190.48