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==Control Structures==

<p>Control structures: sequential, selection, iteration and encapsulation.</p>
<p>A sequential structure is one in which instructions are executed in sequence. For example,</p>

   
<source lang="cpp"># include<stdio.h>
main()
{
    int i=0, j =1;
    printf("A");
    i = i + 1;
    printf("B");
    j = j + 1;
    printf("C");
}</source>
<pre class=codeResult>ABC</pre>

==Selection structure==

<p>The sequence of the instruction is determined by the condition.</p>
<p>The statements in this category are if and switch.</p>

   
<source lang="cpp"># include<stdio.h>
main(){
    int i=0, j =1;
   
    if (i > j){
        i = i + 1;
        printf("a");
    }
    else{
        printf("b");
        j = j +1;
    }
}</source>
<pre class=codeResult>b</pre>