結果
問題 | No.2937 Sigma Plus Problem |
ユーザー | wsrtrt |
提出日時 | 2024-10-18 21:54:11 |
言語 | C++23 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 2 ms / 300 ms |
コード長 | 10,277 bytes |
コンパイル時間 | 5,327 ms |
コンパイル使用メモリ | 313,112 KB |
実行使用メモリ | 6,820 KB |
最終ジャッジ日時 | 2024-10-18 22:42:26 |
合計ジャッジ時間 | 5,739 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 2 ms
6,816 KB |
testcase_01 | AC | 2 ms
6,816 KB |
testcase_02 | AC | 2 ms
6,816 KB |
testcase_03 | AC | 2 ms
6,820 KB |
testcase_04 | AC | 2 ms
6,816 KB |
testcase_05 | AC | 2 ms
6,820 KB |
testcase_06 | AC | 2 ms
6,816 KB |
testcase_07 | AC | 2 ms
6,816 KB |
testcase_08 | AC | 1 ms
6,816 KB |
testcase_09 | AC | 2 ms
6,816 KB |
testcase_10 | AC | 2 ms
6,820 KB |
testcase_11 | AC | 2 ms
6,816 KB |
testcase_12 | AC | 1 ms
6,820 KB |
testcase_13 | AC | 2 ms
6,820 KB |
testcase_14 | AC | 2 ms
6,820 KB |
testcase_15 | AC | 2 ms
6,816 KB |
testcase_16 | AC | 2 ms
6,816 KB |
testcase_17 | AC | 1 ms
6,816 KB |
testcase_18 | AC | 2 ms
6,820 KB |
testcase_19 | AC | 2 ms
6,820 KB |
testcase_20 | AC | 2 ms
6,820 KB |
testcase_21 | AC | 2 ms
6,820 KB |
testcase_22 | AC | 2 ms
6,820 KB |
ソースコード
#include <bits/stdc++.h> #include <atcoder/all> using namespace std; #pragma GCC target("avx2") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") #define INT(...) \ int __VA_ARGS__; \ IN(__VA_ARGS__) #define LL(...) \ ll __VA_ARGS__; \ IN(__VA_ARGS__) #define STR(...) \ string __VA_ARGS__; \ IN(__VA_ARGS__) #define CHR(...) \ char __VA_ARGS__; \ IN(__VA_ARGS__) #define DBL(...) \ double __VA_ARGS__; \ IN(__VA_ARGS__) #define ll long long #define cout std::cout #define yes cout<<"Yes"<<"\n" #define no cout<<"No"<<"\n" #define rep(i,a,b) for(int i=a;i<b;i++) #define rrep(i,a,b) for(int i=a;i>=b;i--) #define fore(i,a) for(auto &i:a) #define all(x) (x).begin(),(x).end() #define allr(x) (x).rbegin(),(x).rend() #define SUM(v) accumulate(all(v), 0LL) #define MIN(v) *min_element(all(v)) #define MAX(v) *max_element(all(v)) #define lb(c, x) distance((c).begin(), lower_bound(all(c), (x))) #define ub(c, x) distance((c).begin(), upper_bound(all(c), (x))) #define pii pair<int, int> #define pll pair<long long,long long> #define pb push_back #define eb emplace_back #define ff first #define ss second #define vi vector<int> #define vll vector<long long> #define vc vector<char> #define vvi vector<vector<int>> #define vec(type, name, ...) vector<type> name(__VA_ARGS__) #define VEC(type, name, size) \ vector<type> name(size); \ IN(name) int scan() { return getchar(); } void scan(int &a) { cin >> a; } void scan(long long &a) { cin >> a; } void scan(char &a) { cin >> a; } void scan(double &a) { cin >> a; } void scan(string &a) { cin >> a; } template <class T, class S> void scan(pair<T, S> &p) { scan(p.first), scan(p.second); } template <class T> void scan(vector<T> &); template <class T> void scan(vector<T> &a) { for(auto &i : a) scan(i); } template <class T> void scan(T &a) { cin >> a; } void IN() {} template <class Head, class... Tail> void IN(Head &head, Tail &...tail) { scan(head); IN(tail...); } template <class T> void print(const T &a) { cout << a; } void OUT() { cout << endl; } template <class Head, class... Tail> void OUT(const Head &head, const Tail &...tail) { print(head); if(sizeof...(tail)) cout << ' '; OUT(tail...); } #define vv(type, name, h, ...) vector<vector<type>> name(h, vector<type>(__VA_ARGS__)) #define VV(type, name, h, w) \ vector<vector<type>> name(h, vector<type>(w)); \ IN(name) #define vvv(type, name, h, w, ...) vector<vector<vector<type>>> name(h, vector<vector<type>>(w, vector<type>(__VA_ARGS__))) #define vvvv(type, name, a, b, c, ...) \ vector<vector<vector<vector<type>>>> name(a, vector<vector<vector<type>>>(b, vector<vector<type>>(c, vector<type>(__VA_ARGS__)))) template<typename T> using min_priority_queue = priority_queue<T, vector<T>, greater<T>>; template <class T> pair<T, T> operator-(const pair<T, T> &x, const pair<T, T> &y) { return pair<T, T>(x.ff - y.ff, x.ss - y.ss); } template <class T> pair<T, T> operator+(const pair<T, T> &x, const pair<T, T> &y) { return pair<T, T>(x.ff + y.ff, x.ss + y.ss); } template <class T> pair<T, T> operator&(const pair<T, T> &l, const pair<T, T> &r) { return pair<T, T>(max(l.ff, r.ff), min(l.ss, r.ss)); } template <class T> vector<T> &operator--(vector<T> &v) { fore(e, v) e--; return v; } template <class T> vector<T> operator--(vector<T> &v, int) { auto res = v; fore(e, v) e--; return res; } template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; } template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; } #define UNIQUE(x) sort(all(x)), x.erase(unique(all(x)), x.end()) //座標圧縮 template <typename T> void zip(vector<T> &x) { vector<T> y = x; UNIQUE(y); for(int i = 0; i < x.size(); ++i) { x[i] = lb(y, x[i]); } } template <class T> T ceil(T x, T y) { assert(y >= 1); return (x > 0 ? (x + y - 1) / y : x / y); } template <class T> T floor(T x, T y) { assert(y >= 1); return (x > 0 ? x / y : (x + y - 1) / y); } long long POW(long long x, int n) { long long res = 1LL; for(; n; n >>= 1, x *= x) if(n & 1) res *= x; return res; } //0^n=0 long long modpow(long long a, long long n, long long mod) { a%=mod; assert(a!=0||n!=0); if(a==0)return 0; long long res = 1; while (n > 0) { if (n & 1) res = res * a % mod; a = a * a % mod; n >>= 1; } return res; } //return 0<=a&&a<h&&0<=b&&b<w; inline bool ingrid(int a,int b,int h,int w){return 0<=a&&a<h&&0<=b&&b<w;} //return return 0<=a&&a<n; inline bool inl(int a,int n){return 0<=a&&a<n;} // bit 演算系 ll pow2(int i) { return 1LL << i; } int topbit(signed t) { return t == 0 ? -1 : 31 - __builtin_clz(t); } int topbit(ll t) { return t == 0 ? -1 : 63 - __builtin_clzll(t); } int lowbit(signed a) { return a == 0 ? 32 : __builtin_ctz(a); } int lowbit(ll a) { return a == 0 ? 64 : __builtin_ctzll(a); } // int allbit(int n) { return (1 << n) - 1; } ll allbit(ll n) { return (1LL << n) - 1; } int popcount(signed t) { return __builtin_popcount(t); } int popcount(ll t) { return __builtin_popcountll(t); } bool ispow2(int i) { return i && (i & -i) == i; } int in() { int x; cin >> x; return x; } ll lin() { unsigned long long x; cin >> x; return x; } long long sqrtll(long long x) { assert(x >= 0); long long rev = sqrt(x); while(rev * rev > x) --rev; while((rev+1) * (rev+1)<=x) ++rev; return rev; } int logN(long long n){ int ret=1; while((1LL<<ret)<n)ret++; return ret; } const double PI=3.1415926535897932384626433832795028841971; const ll MOD = 998244353; const int INFI = numeric_limits<int>::max() / 2; const long long INFL = numeric_limits<long long>::max() / 2; #define inf INFINITY template<class T> void debug(vector<T> a){ rep(i,0,(int)a.size()){ cout<<a[i]<<' '; } cout<<endl; return; } bool palindrome(const string& s){ return equal(all(s),s.rbegin()); } template <std::uint_fast64_t Modulus> class modint { using u64 = std::uint_fast64_t; public: u64 a; constexpr modint(const u64 x = 0) noexcept : a(x % Modulus) {} constexpr u64 &val() noexcept { return a; } constexpr const u64 &val() const noexcept { return a; } constexpr modint operator+(const modint rhs) const noexcept { return modint(*this) += rhs; } constexpr modint operator-(const modint rhs) const noexcept { return modint(*this) -= rhs; } constexpr modint operator*(const modint rhs) const noexcept { return modint(*this) *= rhs; } constexpr modint operator/(const modint rhs) const noexcept { return modint(*this) /= rhs; } constexpr modint &operator+=(const modint rhs) noexcept { a += rhs.a; if (a >= Modulus) { a -= Modulus; } return *this; } constexpr modint &operator-=(const modint rhs) noexcept { if (a < rhs.a) { a += Modulus; } a -= rhs.a; return *this; } constexpr modint &operator*=(const modint rhs) noexcept { a = a * rhs.a % Modulus; return *this; } constexpr modint &operator/=(modint rhs) noexcept { u64 exp = Modulus - 2; while (exp) { if (exp % 2) { *this *= rhs; } rhs *= rhs; exp /= 2; } return *this; } friend bool operator==(const modint& a,const modint& b) { return a.val()==b.val(); } friend bool operator!=(const modint& a,const modint& b) { return a.val()!=b.val(); } }; using mint9=modint<998244353>; using mint1=modint<1000000007>; constexpr pii dx4[4] = {pii{-1, 0},pii{0, -1}, pii{0, 1}, pii{1, 0} }; constexpr pii dx8[8] = {{1, 0}, {1, 1}, {0, 1}, {-1, 1}, {-1, 0}, {-1, -1}, {0, -1}, {1, -1}}; constexpr pii dx[2][8] = { {{-1,-1},{-1,0},{0,-1},{0,1},{1,-1},{1,0}},{{-1,0},{0,-1},{1,0},{-1,1},{0,1},{1,1}}}; #define el "\n" #define endl "\n" #define fastio std::cin.sync_with_stdio(false);std::cin.tie(nullptr),cout<<fixed<<setprecision(16); int main(){ fastio unsigned long long n; IN(n); if(n%2==0){ OUT((n>>1)*(n+1)); }else{ OUT((n)*(n+1>>1)); } return 0; } /* 5000000000 */