Shifting Letters II | LEETCODE POTD |

[@DecodeMaster01]

class Solution {
public:
string shiftingLetters(string s, vector& shifts) {
int n = s.size();
vector d(n + 1);
for (auto& e : shifts) {
if (e[2] == 0) {
e[2]--;
}
d[e[0]] += e[2];
d[e[1] + 1] -= e[2];
}
for (int i = 1; i