PROGRAMMING

HOW TO IMPROVE PROGRAMMING SKILLS AND LOGICS

kuldeep
19 Jun
1345 Views
24 Answers

TP

Teja
17 Aug

#include&lt;stdio.h&gt; #include&lt;conio.h&gt; int prime(int); int main() { &nbsp;&nbsp; &nbsp; &nbsp; int N, i, j, isPrime,g=0,count=0; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; printf(&quot;Enter the value of N:&quot;); &nbsp; &nbsp; scanf(&quot;%d&quot;,&amp;N); &nbsp;&nbsp; &nbsp; &nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; for(i = 2; i &lt;= N; i++) { &nbsp; &nbsp; &nbsp; &nbsp; isPrime = 0; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; for(j = 2; j &lt;= i/2; j++) { &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;if(i % j == 0) { &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;isPrime = 1; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;break; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;} &nbsp; &nbsp; &nbsp; &nbsp; } &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; if(isPrime==0 &amp;&amp; N!= 1) &nbsp; &nbsp; &nbsp;{ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; g=g+i; &nbsp; &nbsp; &nbsp; &nbsp; if(g&lt;=N) &nbsp; &nbsp; &nbsp; &nbsp; { &nbsp; &nbsp; &nbsp; &nbsp; if(g==2) &nbsp; &nbsp; &nbsp; &nbsp; count=0; &nbsp; &nbsp; &nbsp; &nbsp; else if(prime(g)) { count++; } &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; } &nbsp; &nbsp; &nbsp; &nbsp; } } printf(&quot;%d&quot;,count); &nbsp; &nbsp;getch(); &nbsp; &nbsp;return 0; } int prime(int z) { int l,c=0; for(l=1;l&lt;z;l++) { if(z%l==0) ++c; } if(c==1) return 1; else return 0; &nbsp;&nbsp; } &nbsp; &nbsp;&nbsp;

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#include<stdio.h>
#include<conio.h>
int prime(int);
int main()
{

int N, i, j, isPrime,g=0,count=0;

printf("Enter the value of N:");
scanf("%d",&N);



for(i = 2; i <= N; i++)
{
isPrime = 0;

for(j = 2; j <= i/2; j++)
{

if(i % j == 0)
{
isPrime = 1;
break;
}
}

if(isPrime==0 && N!= 1)
{

g=g+i;
if(g<=N)
{
if(g==2)
count=0;
else if(prime(g))
{
count++;
}

}
}

}
printf("%d",count);

getch();
return 0;

}

int prime(int z)
{
int l,c=0;
for(l=1;l<z;l++)
{
if(z%l==0)
++c;
}
if(c==1)
return 1;
else
return 0;
}

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