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DSA02039 - PHÂN TÍCH SỐ 2.cpp
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DSA02039 - PHÂN TÍCH SỐ 2.cpp
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#include<bits/stdc++.h>
#define mod 1000000007
#define ll long long
#define p(x) pair<x,x>
#define v(x) vector<x>
#define Tree node*
#define sz(a) a.size()
#define x first
#define y second
#define pb(a) push_back(a)
#define pf(a) push_front(a)
#define FOR(i, l, r) for (int i = l; i < r; i++)
#define FORX(i, l, r, x) for (int i = l; i < r; i += x)
#define FORD(i, l, r) for (int i = l; i >= r; i--)
#define correct(x, y, n, m) 0 <= (x)&&(x) < (n)& & 0 <= (y)&&(y) < (m)
#define cin(M, n) FOR(i, 0, n)cin >> M[i]
#define cout(M, n) FOR(i, 0, n)cout << M[i] << " "
#define rs(M, x) memset(M, x, sizeof(M))
#define reset() FOR(i, 0, 1001)A[i].clear(), check[i] = false
#define faster() cin.tie(0); ios_base::sync_with_stdio(false); cout.tie(0);
#define run() int t; cin >> t; while (t--)
#define pq(x) priority_queue<x>
#define neg_pq(x) priority_queue<x, vector<x>, greater<x>>
#define all(M) M.begin(), M.end()
using namespace std;
//_______________________NGUYỄN_NGỌC_TOÀN_______________________//
int n;
v(string) S;
void Try(int k, int sum, string s) {
FORD(i, k, 1) {
if (sum == n) {
s.pop_back();
S.pb("(" + s + ")");
return;
}
else if (sum < n)Try(i, sum + i, s + to_string(i) + " ");
}
}
int main() {
faster();
run() {
cin >> n;
S.clear();
Try(n, 0, "");
cout << sz(S) << endl;
for (auto c : S)cout << c << " ";
cout << endl;
}
}
//__________________________B20DCPT173__________________________//