代码没翻到……但是这个是我们老师写的代码，像AI吗？

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

#define F(i, j, k) for (int i = j; i <= k; ++i)
#define DF(i, j, k) for (int i = j; i >= k; --i)

const int N = 1e5 + 100;

int num[N];

string st;

bool tp[N];

inline void solve1(int l, int r) {
    F(i, l, r) {
        if (i == l || st[i - 1] == '*')
            st[i] = '9';
        if (i > l && st[i - 1] == '/')
            st[i] = '1';
    }
}

queue<vector<pair<int, int>>> a[N];

int mx;

inline void solve0(int l, int r) {
    int sum = 0;
    F(i, l, r) if (st[i] == '/')++ sum;
    if (!sum) {
        F(i, l, r) if (st[i] == '?') st[i] = '1';
        return;
    }
    F(i, l, r) {
        if (i == l)
            st[i] = '1';
        if (st[i] == '/')
            st[i + 1] = '9';
        if (st[i] == '*')
            st[i + 1] = '1';
    }
    vector<pair<int, int>> v;
    v.emplace_back(make_pair(l, r));
    mx = max(mx, sum);
    a[sum].push(v);
}

inline void jian(int l, int r) {
    F(i, l, r) if (st[i] == '/' && st[i + 1] == '9') {
        st[i + 1] = '1';
        break;
    }
}

int main() {
    freopen("C.in", "r", stdin);
    freopen("C.out", "w", stdout);
    ios_base::sync_with_stdio(false), cin.tie(nullptr);
    cin >> st;
    int len = int(st.size());
    int cnt = 0;
    num[++cnt] = -1;
    tp[cnt] = 1;
    for (int i = 0; i < len; ++i) {
        if (st[i] == '+') {
            num[++cnt] = i;
            tp[cnt] = 1;
        }
        if (st[i] == '-') {
            num[++cnt] = i;
            tp[cnt] = 0;
        }
    }
    num[++cnt] = len;
    F(i, 1, cnt - 1) {
        if (tp[i])
            solve1(num[i] + 1, num[i + 1] - 1);
        else
            solve0(num[i] + 1, num[i + 1] - 1);
    }
    ++mx;
    while (mx > 1) {
        mx--;
        while (a[mx].size() >= 9) {
            vector<pair<int, int>> now;
            F(i, 1, 9) {
                for (auto it : a[mx].front())
                    now.emplace_back(it);
                a[mx].pop();
            }
            if (mx > 1)
                a[mx - 1].push(now);
        }
        if ((mx > 1 && a[mx - 1].empty() && !a[mx].empty()) ||
            a[mx].size() == 1) {
            while (!a[mx].empty()) {
                for (auto it : a[mx].front())
                    jian(it.first, it.second);
                if (mx > 1)
                    a[mx - 1].push(a[mx].front());
                a[mx].pop();
            }
            continue;
        }
        if (!a[mx].empty()) {
            vector<pair<int, int>> now;
            for (auto it : a[mx].front())
                st[it.first] = char(48 + 10 - a[mx].size());
            while (!a[mx].empty()) {
                for (auto it : a[mx].front())
                    now.emplace_back(it);
                a[mx].pop();
            }
            if (mx > 1)
                a[mx - 1].push(now);
        }
    }
    cout << st << '\n';
}