Write a program to solve the sn=a + aa +... + a... A, in which a is 1-9 of a number, n is a positive integer, a and n are input from the keyboard, for example, type n is 4, a 2, sn=2 + 22 + 222 + 2222,

Thank you

CodePudding user response:

Nested loop x=0; What meaning?

CodePudding user response:

For reference only

 # include & lt; Stdio. H> 

Int Mult10 (int n) 
{
Int sum=10; 
Int m; 
If (n==0) return 1; 
For (m=1; MReturn the sum. 
} 

Int main () {
Int a, n, sn, x=0; 
int i,j; 
Printf (" a=? \n"); 
scanf("%d",& A); 
Printf (n=?" \n"); 
scanf("%d",& N); 
Sn=0; 
for(i=0; i{
for(j=0; J<=I; J++) 
X +=a * Mult10 (j); 
Sn +=x; 
X=0; 
} 
Printf (" sn=% d \ n ", sn); 
return 0; 
} 

CodePudding user response:

CodePudding user response:

Input and output C=& gt; C + +

 
scanf("%d",& A);=& gt; Cin 
Printf (n=?" \n");=& gt; Cout