Runtime error in rotation of string by k

#1

#include
#include
using namespace std;

void rotate(char *a,int k){
int i = strlen(a);
while(i>=0){
a[i+k] = a[i];
i–;
}
i = strlen(a);
int y = i-k;
int s = 0;
while(k<i){
a[s] = a[y];
s++;
y++;
}
a[i-k] = ‘\0’;

}
int main() {
char a[100] = “yellow”;
int k=2;

rotate(a,k);
cout<<a<<endl;

}

it is showing runtime error in rotation of string by k

#2

@LPLC0006
Condition for second while loop is while (k < i)
Neither k is incremented nor i is decremented. This loop will run infinitely as its condition remains true always and thus your code gives a runtime error.

#3

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