The Fibonacci sequence N items, ask for help!-CodePudding

Enter a different value no problem input 1 or 2, 133,,,
#include
Int main (void)
{
Int N, f1, f2, I, A;
F1=1;
F2=1;
The scanf (" % d ", & amp; N);
If (N
=2)Printf (" 1 ");
If (N> 2)
{
For (I=3; i<=N; I++)
{
A=f1 + f2;
F1=f2;
F2=A;
}
}
Printf (" % d ", A % 2000000003);
return 0;
}

CodePudding user response:

 # include 

Int main (void) 
{
Int N, f1, f2, I, A; 
F1=1; 
F2=1; 
The scanf (" % d ", & amp; N); 
If (N<=2) {
Printf (" 1 "); 
return 0; 
} 
//if (N> 2) 
//{
For (I=3; i<=N; I++) 
{
A=f1 + f2; 
F1=f2; 
F2=A; 
} 
//} 
Printf (" % d \ n ", A % 2000000003); 

return 0; 
}

For your reference ~

Because there is no initialization, A type 1 or 2, executes the last printf statements, because is A random value, so may appear 133;

CodePudding user response:

N<=2, A no assignment, so A is not affirmatory, either in print (" 1 ") after the return, or print (" 1 ") to A=1