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Can any1 please tell me what is wrong wid dis solution?

#include <stdio.h>


int main()
{
long long int f[5000],in,last=f[0];
int i;

while((scanf( "%lld" , &in))==1)
{

for(i=0;i<=in;i++)
{
f[0]=0,f[1]=1;
f =f[i-1]+f[i-2];
if(f >last)
{
last=f ;

}

}
printf("The Fibonacci ...

The solution is correct but it exceeds time limit so what can I do about it? Please tell me anyone. Here is my solution:



#include <stdio.h>

int fu(int ab)
{

if(ab%10>0 && ab>0)
{
return ab%10;
}
else
{
return ab/10;
}
}

int S(int a,int b)
{
int ans=0,i;
for(i=a;i<=b;i++)
{
ans+=fu ...

can u give 1?

The solution is correct but it exceeds time limit so what can I do about it? :( :( Please tell me anyone. Here is my solution:



#include <stdio.h>

int fu(int ab)
{

if(ab%10>0 && ab>0)
{
return ab%10;
}
else
{
return ab/10;
}
}

int S(int a,int b)
{
int ans=0,i;
for(i=a;i<=b;i ...