leetcode 1540. K次操作转变字符串-耗时95-Can Convert String in K Moves

Problem: 1540. Can Convert String in K Moves耗时95%统计差值的余数的频次相同余数满足等差数列若不满足【余数 26 * ( 频次 - 1 ) k】则返回false最后返回trueCodeclass Solution { public: bool canConvertString(string s, string t, int k) { if(s.size()!t.size()) return false; vectorint ump(26, 0); int n s.size(); for( int i 0; i n; i ) { ump[((t[i] - s[i] 26) % 26)]; } for(int w 1; w 26; w) { if(w 26 * ( ump[w] - 1 ) k) { return false; } } return true; } };