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- #include <bits/stdc++.h>
- using namespace std;
- int main() {
- ios::sync_with_stdio(false);
- map<string, int> mp;
- int q;
- cin >> q;
- while (q--) {
- int op;
- cin >> op;
- if (op == 0) {
- string name;
- int val;
- cin >> name >> val;
- mp[name] = val;
- } else if (op == 1) {
- string name;
- cin >> name;
- cout << mp[name] << endl;
- } else if (op == 2) {
- string name;
- cin >> name;
- mp.erase(name);
- }
- }
- return 0;
- }
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