Write a function called i to insert one character string into another string. The arguments to the function should consist of the source string, the string to be inserted, and the position in the source string where the string is to be inserted. So, the call
i
with t as originally defined in the previous exercise, results in the character string̎ being inserted inside t, beginning at t . Therefore, the character string̎ is stored inside the t array after the function returned.
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