python/GESP/sizeof.cpp

#include <bits/stdc++.h>
using namespace std;

bool issimilar(string a, string b) {
	if (abs((int)a.size() - (int)b.size()) > 1)
		return false;
	if (a.size() == b.size()) {
		int cnt = 0;
		for (int i = 0; i < a.size(); i++) {
			if (a[i] != b[i])
				if (cnt++ > 1)
					return false;
		}
		return true;
	} else {
		int cnt = 0;
		if (a.size() > b.size())
			swap(a, b);
		int j = 0;
		for (int i = 0; i < a.size();) {
			if (a[i] != b[j]) {
				cnt++;
				j++;
			} else {
				i++;
				j++;
			}
		}
		if (cnt > 1)
			return false;
		return true;
	}
}

int main() {
	int T;
	cin >> T;
	while (T--) {
		string a, b;
		cin >> a >> b;
		if (issimilar(a, b)) {
			cout << "similar" << endl;
		} else
			cout << "not similar" << endl;
	}
	return 0;
}