Submission #1323541

#	Time	Username	Problem	Language	Result	Execution time	Memory
1323541		adscoding	Worst Reporter 3 (JOI18_worst_reporter3)	C++20	100 / 100	362 ms	15176 KiB

worst_reporter3

#include <bits/stdc++.h>
#define fi first
#define se second
#define FOR(i, a, b) for (int i = a, _b = b; i <= _b; ++i)
#define FORD(i, a, b) for (int i = a, _b = b; i >= _b; --i)
#define FORLL(i, a, b) for (ll i = a, _b = b; i <= _b; ++i)
#define FORDLL(i, a, b) for (ll i = a, _b = b; i >= _b; --i)
#define all(x) x.begin(), x.end()
#define uni(x) sort(all(x)), x.erase(unique(all(x)), x.end())
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

#define dbg(...) debug(#__VA_ARGS__, __VA_ARGS__)
template<typename T>
void __prine_one(const char *&s, const T &x)
{
    while (*s == ' ') ++s;
    const char *p = s;
    int bal = 0;
    while (*s)
    {
        if (*s == '(') ++bal;
        else if (*s == ')') --bal;
        else if (*s == ',' && bal == 0) break;
        ++s;
    }
    cerr.write(p, s - p) << " = " << x;
    if (*s == ',')
    {
        cerr << "  ,  ";
        ++s;
    }
}

template<typename... Args>
void debug(const char *s, Args... args)
{
    cerr << "[  ";
    int dummy[] = {0, (__prine_one(s, args), 0)...};
    (void)dummy;
    cerr << "  ]\n\n";
}

template<class X, class Y>
    bool maximize(const X &a, const X &b)
    {
        if (a < b)
        {
            a = b;
            return true;
        }
        return false;
    }

template<class X, class Y>
    bool minimize(const X &a, const X &b)
    {
        if (a > b)
        {
            a = b;
            return true;
        }
        return false;
    }


// --------------------------------------------------------------------------------------------

const int maxn = 5e5 + 3;
int n, q;
ll D[maxn];

// --------------------------------------------------------------------------------------------



namespace sub2
{
	bool approve()
	{
		return true;
	}

	int state[maxn];

	int process(int T, int L, int R)
	{
		FOR(i, 0, n)
			state[i] = -i;

		FOR(iT, 1, T)
		{
			++state[0];
			FOR(i, 1, n)
			{
				if (state[i - 1] - state[i] > D[i])
					state[i] = state[i - 1] - 1;
			}
		}

		int res = 0;
		FOR(i, 0, n)
			res += state[i] >= L && state[i] <= R;

		return res;
	}

	void solve()
	{
		while (q--)
		{
			int T, L, R; cin >> T >> L >> R;
			if (L > R)
				return void(cout << 0 << '\n');
			cout << process(T, L, R) << '\n';	
		}
	}
}

namespace AC
{
	bool approve()
	{
		return true;
	}

	ll X[maxn], Y[maxn];

	ll POS(ll i, ll T)
	{
		return -i + Y[i] * (T / X[i]);
	}

	void solve()
	{
		X[0] = 1; Y[0] = 1;
		FOR(i, 1, n)
		{
			ll cur = (D[i] - 1) / (Y[i - 1]) + 1;
			X[i] = X[i - 1] * cur;
			Y[i] = cur * Y[i - 1];
			// dbg(i, X[i], Y[i]);
		}

		// exit(0);

		while (q--)
		{
			ll L, R, T; cin >> T >> L >> R;
			if (L > R)
				return void(cout << "0\n");
			int l = 0, r = n;
			while (l <= r)
			{
				int mid = l + r >> 1;
				if (POS(mid, T) >= L)
					l = mid + 1;
				else
					r = mid - 1;
			}

			int bR = r;

			l = 0, r = n;
			while (l <= r)
			{
				int mid = l + r >> 1;
				if (POS(mid, T) <= R)
					r = mid - 1;
				else
					l = mid + 1;
			}

			int bL = l;

			cout << max(0, bR - bL + 1) << '\n';
		}
	}
}



void solve()
{
	cin >> n >> q;
	FOR(i, 1, n)
		cin >> D[i];
		
	AC :: solve();
}

signed main()
{
    ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
    #define TASK "TEST"
    if (fopen(TASK".INP", "r"))
    {
        freopen(TASK".INP", "r", stdin);
        freopen(TASK".OUT", "w", stdout);
    }
    solve();
    return 0;
}

Compilation message (stderr)

worst_reporter3.cpp: In function 'int main()':
worst_reporter3.cpp:201:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  201 |         freopen(TASK".INP", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
worst_reporter3.cpp:202:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  202 |         freopen(TASK".OUT", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 7 / 7
• Subtask 2: 12 / 12
• Subtask 3: 81 / 81