Do we need to assign the length of characters to define a string?

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Kripa Shankar

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Not necessarily, however you can declare a character array of fixed length which can be used as a string. LIKE: char* s = "hello this is string";
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C language, Data Structures Tutor

Describing length of the string during declaration plus initialization statement is optional one. eg, char s ="hai"; or char s ="hai";
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Not necessarily required although it's good practice to assign size ie. Char string="1234"
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No. A string can be declared either char str or char *str. The second one is a string declaration without assignment. A string can be initialized as below: char str = {'h','e','l','l','o'}; (or) char str = "hello"; (or) char *str = "hello";
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char s ; is the size/length of array s & you can put value 0-3.
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