Submission #70244521

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Source Code Expand

#include <bits/stdc++.h>
#ifdef LOCAL
#include "debug.h"
#else
#define dbg(...) 0
#endif
using namespace std;
using ll = long long;
using db = double;
const ll N = 1e6 + 5;
const ll md = 998244353;
const ll MOD = 1e9 + 7;
const ll INF = 0x3f3f3f3f3f3f3f;
const db PI = acos(-1);
const db eps = 1e-6;
const db E = 2.718281828459045;
typedef pair<ll, ll> PLL;
#define fi first
#define se second
ll a[N], b[N];
void solve()
{
    ll q;
    cin >> q;
    char c;
    ll op;
    stack<char> s;
    ll f = 1;
    ll cnt = 0;
    ll x = 0, y = 0;
    while (q--)
    {
        cin >> op;
        if (op == 1)
        {
            cin >> c;
            a[cnt] = x;
            b[cnt] = y;
            cnt++;
            if (c == '(')
                x++;
            else
                x--;
            y = min(x, y);
            if (x == 0 && y >= 0)
                cout << "Yes\n";
            else
                cout << "No\n";
        }
        else
        {
            cnt--;
            x = a[cnt];
            y = b[cnt];
            if (x == 0 && y >= 0)
                cout << "Yes\n";
            else
                cout << "No\n";
        }
    }
}
int main()
{
    ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);
    int T;
    T = 1;
    // cin >> T;
    while (T--)
    {
        solve();
    }
}

Submission Info

Compile Error

Main.cpp: In function ‘void solve()’:
Main.cpp:28:8: warning: unused variable ‘f’ [-Wunused-variable]
   28 |     ll f = 1;
      |        ^

Judge Result