03. Moving Target

#include <iostream>
#include <sstream>
#include <string>
#include <vector>
#include <algorithm>

using namespace std;

int main() {
    int n;
    string line;
    getline(cin, line);

    istringstream stream(line);

    vector<int> targets;

    while (stream >> n) {
        targets.push_back(n);
    }

    string command;
    cin >> command;

    while (command != "End") {
        int index, value;
        cin >> index >> value;

        if (command == "Shoot") {
            if (index >= 0 && index < targets.size()) {
                targets[index] -= value;
                if (targets[index] <= 0) {
                    targets.erase(targets.begin() + index);
                }
            }
        }
        else if (command == "Add") {
            if (index >= 0 && index < targets.size()) {
                targets.insert(targets.begin() + index, value);
            }
            else {
                cout << "Invalid placement!\n";
            }
        }
        else if (command == "Strike") {
            if (index - value >= 0 && index + value < targets.size()) {
                targets.erase(targets.begin() + index - value, targets.begin() + value + index + 1);
            }
            else {
                cout << "Strike missed!\n";
            }
        }
        cin >> command;
    }

    for (int i = 0; i < targets.size(); i++) {
        cout << targets[i] << (i < targets.size() - 1 ? "|" : "");
    }
    return 0;
}