Submission #127972

#	Time	Username	Problem	Language	Result	Execution time	Memory
127972		BThero	Worst Reporter 3 (JOI18_worst_reporter3)	C++17	12 / 100	21 ms	1912 KiB

worst_reporter3

// Why am I so dumb? :c
// chrono::system_clock::now().time_since_epoch().count()

//#pragma GCC optimize("Ofast")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")

#include<bits/stdc++.h>
#include<ext/pb_ds/assoc_container.hpp>
#include<ext/pb_ds/tree_policy.hpp>

#define pb push_back
#define mp make_pair

#define all(x) (x).begin(), (x).end()

#define fi first
#define se second

using namespace std;
using namespace __gnu_pbds;

typedef long long ll;   
typedef pair<int, int> pii;
template<typename T> using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;

const int MAXN = (int)1e5 + 5;
const ll INF = (ll)1e10;

ll trf[MAXN], lim[MAXN], need[MAXN];

int n, q;

void solve() {
    scanf("%d %d", &n, &q);

    for (int i = 1; i <= n; ++i) {
        scanf("%lld", &lim[i]);
    }

    trf[0] = 1;

    for (int i = 0; i < n; ++i) {
        trf[i + 1] = (lim[i + 1] + trf[i] - 1) / trf[i] * trf[i];
    }

    for (int i = 1; i <= n; ++i) {
        need[i] = trf[i] / trf[i - 1];
    }

    for (int i = 1; i <= q; ++i) {
        ll l, r, t, sum = 0;
        scanf("%lld %lld %lld", &t, &l, &r);
        l -= t;
        r -= t;
        int ans = 0;

        if (l <= sum && sum <= r) {
            ++ans;
        }

        for (int j = 1; j <= n; ++j) {
            ll cur = trf[j - 1] * (t % need[j]) + 1;
            t /= need[j];
            sum -= cur;

            if (l <= sum && sum <= r) {
                ++ans;
            }
        }

        printf("%d\n", ans);
    }
}

int main() {
    //freopen("input.txt", "r", stdin);
    //freopen("output.txt", "w", stdout);

    int tt = 1;

    while (tt--) {
        solve();
    }

    return 0;
}

Compilation message (stderr)

worst_reporter3.cpp: In function 'void solve()':
worst_reporter3.cpp:34:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d", &n, &q);
     ~~~~~^~~~~~~~~~~~~~~~~
worst_reporter3.cpp:37:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld", &lim[i]);
         ~~~~~^~~~~~~~~~~~~~~~~
worst_reporter3.cpp:52:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld %lld %lld", &t, &l, &r);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 7
• Subtask 2: 12 / 12
• Subtask 3: 0 / 81