98 lines
2 KiB
C++
98 lines
2 KiB
C++
#include <bits/stdc++.h> // {{{
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// https://codeforces.com/blog/entry/96344
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#pragma GCC optimize("O2,unroll-loops")
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#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
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using namespace std;
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using i32 = int32_t;
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using u32 = uint32_t;
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using i64 = int64_t;
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using u64 = uint64_t;
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using f64 = double;
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using f128 = long double;
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#if __cplusplus >= 202002L
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template <typename T> constexpr T MIN = std::numeric_limits<T>::min();
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template <typename T> constexpr T MAX = std::numeric_limits<T>::max();
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template <typename T> [[nodiscard]] static T sc(auto &&x) {
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return static_cast<T>(x);
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}
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template <typename T> [[nodiscard]] static T sz(auto &&x) {
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return static_cast<T>(x.size());
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}
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#endif
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static void NO() { std::cout << "NO\n"; }
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static void YES() { std::cout << "YES\n"; }
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#define all(x) (x).begin(), (x).end()
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#define rall(x) (x).rbegin(), (x).rend()
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#define ff first
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#define ss second
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#ifdef LOCAL
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#define db(...) std::print(__VA_ARGS__)
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#define dbln(...) std::println(__VA_ARGS__)
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#else
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#define db(...)
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#define dbln(...)
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#endif
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// }}}
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void solve() {
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u32 n;
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cin >> n;
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vector<u64> a(n);
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for (auto &e : a)
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cin >> e;
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u64 big = *max_element(all(a));
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u64 ub = accumulate(all(a), 0LL);
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for (u64 target = big; target <= ub; ++target) {
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u32 last = 0, moves = 0;
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u64 total = 0;
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bool bad = false;
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for (u32 i = 0; i < n && !bad; ++i) {
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total += a[i];
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if (total == target) {
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moves += i - last;
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last = i + 1;
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total = 0;
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} else if (i == n - 1 && total != target || total > target) {
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bad = true;
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}
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}
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if (!bad) {
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cout << moves + n - last << endl;
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return;
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}
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}
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}
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int main() { // {{{
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cin.tie(nullptr)->sync_with_stdio(false);
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cin.exceptions(cin.failbit);
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#define PROBLEM_NAME "sleeping-in-class"
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#ifdef LOCAL
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freopen("io/" PROBLEM_NAME ".in", "r", stdin);
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freopen("io/" PROBLEM_NAME ".out", "w", stdout);
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#endif
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u32 t;
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cin >> t;
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while (t--)
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solve();
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return 0;
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}
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// }}}
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