3 If the string S='software',the number of its prefix true substrings is ( ). A: 7 B: 10 C: 9 D: 8
3 If the string S='software',the number of its prefix true substrings is ( ). A: 7 B: 10 C: 9 D: 8
1
3 If the string S='software',the number of its prefix true substrings is ( ). A: 7 B: 10 C: 9 D: 8