3522. Calculate Score After Performing Instructions

You are given two arrays, instructions and values, both of size n.

You need to simulate a process based on the following rules:

• You start at the first instruction at index i = 0 with an initial score of 0.

• If instructions[i] is "add" :

  • Add values[i] to your score.
  • Move to the next instruction (i + 1).

• If instructions[i] is "jump" :

  • Move to the instruction at index (i + values[i]) without modifying your score.

The process ends when you either:

• Go out of bounds (i.e., i < 0 or i >= n), or
• Attempt to revisit an instruction that has been previously executed. The revisited instruction is not executed.

Return your score at the end of the process.

class Solution {
public:
    long long calculateScore(vector<string>& instructions, vector<int>& values) {
        long long idx = 0, res = 0, n = values.size();
        vector<bool> vis(n);
        while(0 <= idx and idx < n and !vis[idx]) {
            vis[idx] = true;
            if(instructions[idx] == "add") {
                res += values[idx++];
            } else idx += values[idx];
        }
        return res;
    }
};