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-rwxr-xr-xcontests/Round#849(Div4)/E/main.cpp124
1 files changed, 0 insertions, 124 deletions
diff --git a/contests/Round#849(Div4)/E/main.cpp b/contests/Round#849(Div4)/E/main.cpp
deleted file mode 100755
index d1605ce..0000000
--- a/contests/Round#849(Div4)/E/main.cpp
+++ /dev/null
@@ -1,124 +0,0 @@
-#include<bits/stdc++.h>
-using namespace std;
-
-using ll = long long;
-using pi = pair<int, int>;
-using vpi = vector<pi>;
-using vi = vector<int>;
-using vll = vector<long long>;
-using mpii = map<int, int>;
-using mpll = map<ll, ll>;
-using db = long double;
-
-#define pb push_back
-#define all(x) (x).begin(), (x).end()
-#define rall(x) (x).rbegin(), (x).rend()
-#define lb lower_bound
-#define ub upper_bound
-
-const int MOD = (int)1e9 + 7;
-const db PI = acos((db)-1);
-const int dx[4]{1, 0, -1, 0};
-const int dy[4]{0, 1, 0, -1};
-
-//pretty printing
-template<typename K, typename V>
-void printm(const map<K, V> &mp) {
- cerr << "{" << endl;
- for (auto p : mp) {
- cerr << " { " << p.first << " : " << p.second << " }\n";
- }
- cerr << "}" << endl;
-}
-template<typename T>
-void printv(const vector<T> &v) {
- cerr << "[";
- for (int i = 0; i < v.size(); i++) {
- if (i == v.size() - 1) {
- cerr << v[i];
- } else {
- cerr << v[i] << ", ";
- }
- }
- cerr << "]\n";
-}
-
-template<typename T>
-void printvv(const vector<vector<T>> &v) {
- cerr << "[\n";
- for (auto &vec : v) {
- cout << " ";
- printv(vec);
- }
- cerr << "]\n";
-}
-void print() {
- cerr << "\n";
-}
-
-template<typename T, typename... TS>
-void print(T val, TS... vals) {
- cerr << val << " ";
- print(vals...);
-}
-
-
-/* stuff you should look for:
- ---------------------------
- * special cases (n=1?)
- * int overflow, array bounds
- * do smth instead of nothing and stay organized
- * WRITE STUFF DOWN
- * DON'T GET STUCK ON ONE APPROACH
- */
-
-/*
- * Ideally we want them all to be positive
- * If we can't get them all to be positive we want to flip the largest numbers in absloute
- * The 0 can be a joker because flipping its sign is meaningless anyways
-*/
-
-void solve() {
- int n;
- cin >> n;
- vll v(n);
- for (auto &x : v) cin >> x;
- int neg = 0;
- for (auto x : v) {
- neg += (x < 0);
- }
- ll sum = 0;
- if (neg % 2 == 0) {
- for (auto x : v) {
- if (x < 0) {
- sum += -x;
- } else {
- sum += x;
- }
- }
- } else {
- for (auto &x : v) {
- if (x < 0) {
- x = -x;
- }
- }
- for (auto x : v) {
- sum += x;
- }
- sum -= *min_element(all(v)) * 2;
- }
- cout << sum << '\n';
-
-}
-
-int main () {
- ios_base::sync_with_stdio(false);
- cin.tie(NULL);
- int tt;
- cin >> tt;
- while(tt--) {
- solve();
- }
-}
-
-