11956 - Brainfuck

/*
 *
 * problem link: https://onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=3107
 *
 * */

#include <bits/stdc++.h>

using namespace std;

#define ll long long
#define endl '\n'
#define sz(x) int(x.size())
#define all(x) x.begin(), x.end()

string hexa(int x) {
    string s;
    while (x > 0) {
        s += (x % 16 > 9 ? 'A' + (x % 16 - 10) : '0' + x % 16);
        x /= 16;
    }
    while (sz(s) < 2) s += '0';
    reverse(all(s));
    return s;
}

int main() {
    ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);

    int testcase;
    cin >> testcase;
    for (int test = 1; test <= testcase; test++) {
        string s;
        cin >> s;
        vector<int> arr(100);
        int p = 0;
        for (int i = 0; i < sz(s); i++) {
            if (s[i] == '+') arr[p] = (arr[p] + 1) % 256;
            else if (s[i] == '-') arr[p] = (arr[p] - 1 + 256) % 256;
            else if (s[i] == '>') p = (p + 1) % 100;
            else if (s[i] == '<') p = (p - 1 + 100) % 100;
        }
        cout << "Case " << test << ": ";
        for (int i = 0; i < 100; i++) {
            cout << hexa(arr[i]) << " \n"[i == 99];
        }
    }
}