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// 2109. Adding Spaces to a String
#include "leetcode.h"
/*
* given a 0-indexed string 's' and a 0-indexed integer array 'spaces' that
* describes the indices in the original string where spaces will be added. each
* space should be inserted before the character at the given index. return the
* modified string after the spaces have been added
*/
class Solution {
public:
string addSpaces(string s, vector<int> &spaces) {
int n = spaces.size(), m = s.size(), i = 0, j = 0;
string ans = "";
while (i < m) {
if (j < n && i == spaces[j]) {
ans += ' ';
j++;
}
ans += s[i];
i++;
}
return ans;
}
};
int main() {
Solution obj;
vector<int> s1 = {8, 13, 15}, s2 = {1, 5, 7, 9}, s3 = {0, 1, 2, 3, 4, 5, 6};
cout << obj.addSpaces("LeetcodeHelpsMeLearn", s1)
<< endl; // expect: Leetcode Helps Me Learn
cout << obj.addSpaces("icodeinpython", s2)
<< endl; // expect: i code in py thon
cout << obj.addSpaces("spacing", s3) << endl; // expect: s p a c i n g
}
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