leetcode-daily/cpp/2203/220302.cpp

24 lines
671 B
C++

#include <string>
/**
* 392. Is Subsequence
* Given two strings s and t, return true if s is a subsequence of t, or false otherwise.
* A subsequence of a string is a new string that is formed from the original string by deleting some (can be none) of the characters without disturbing the relative positions of the remaining characters. (i.e., "ace" is a subsequence of "abcde" while "aec" is not).
*/
class Solution {
public:
static bool isSubsequence(const std::string& t, const std::string& s) {
int m = s.length(), n = t.length(), i = 0, j = 0;
while (i < m && j < n) {
if (s[i++] == t[j])
++j;
}
return j == n;
}
};
int main() {
return 0;
}