結果
| 問題 | No.1064 ∪∩∩ / Cup Cap Cap |
| コンテスト | |
| ユーザー |
👑 null
|
| 提出日時 | 2020-03-24 14:09:25 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 8,229 bytes |
| コンパイル時間 | 1,650 ms |
| コンパイル使用メモリ | 140,768 KB |
| 最終ジャッジ日時 | 2025-01-09 10:02:38 |
|
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
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| ファイルパターン | 結果 |
|---|---|
| sample | WA * 4 |
| other | WA * 20 RE * 16 |
コンパイルメッセージ
main.cpp: In function ‘void scans(std::string&)’:
main.cpp:78:14: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
78 | scanf("%c", &c);
| ~~~~~^~~~~~~~~~
main.cpp:79:28: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
79 | if (c == '\n')scanf("%c", &c);
| ~~~~~^~~~~~~~~~
main.cpp:82:22: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
82 | scanf("%c", &c);
| ~~~~~^~~~~~~~~~
main.cpp: In function ‘void scanc(char&)’:
main.cpp:88:14: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
88 | scanf("%c", &c);
| ~~~~~^~~~~~~~~~
main.cpp:91:22: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
91 | scanf("%c", &c);
| ~~~~~^~~~~~~~~~
main.cpp: In function ‘int main()’:
main.cpp:308:14: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
308 | scanf("%d", &n);
| ~~~~~^~~~~~~~~~
main.cpp:310:23: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
310 | rep(i, n)scanf("%d", &a[i]);
| ~~~~~^~~~~~~~~~~~~
main.cpp:319:14: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
319 | scanf("%d", &q);
| ~~~~~^~~~~~~~~~
main.cpp:322:22: warning: ignoring return va
ソースコード
/*
このコード、と~おれ!
Be accepted!
∧_∧
(。・ω・。)つ━☆・*。
⊂ ノ ・゜+.
しーJ °。+ *´¨)
.· ´¸.·*´¨) ¸.·*¨)
(¸.·´ (¸.·'* ☆
*/
#include <cstdio>
#include <algorithm>
#include <string>
#include <cmath>
#include <cstring>
#include <vector>
#include <numeric>
#include <iostream>
#include <random>
#include <map>
#include <unordered_map>
#include <queue>
#include <regex>
#include <functional>
#include <complex>
#include <list>
#include <cassert>
#include <iomanip>
#include <set>
#include <stack>
/*多倍長整数/cpp_intで宣言
#include <boost/multiprecision/cpp_int.hpp>
using namespace boost::multiprecision;
*/
//#pragma gcc target ("avx2")
//#pragma gcc optimization ("o3")
//#pragma gcc optimization ("unroll-loops")
#define rep(i, n) for(int i = 0; i < (n); ++i)
#define rep1(i, n) for(int i = 1; i <= (n); ++i)
#define rep2(i, n) for(int i = 2; i < (n); ++i)
#define repr(i, n) for(int i = n; i >= 0; --i)
#define reprm(i, n) for(int i = n - 1; i >= 0; --i)
#define printynl(a) printf(a ? "yes\n" : "no\n")
#define printyn(a) printf(a ? "Yes\n" : "No\n")
#define printYN(a) printf(a ? "YES\n" : "NO\n")
#define printim(a) printf(a ? "possible\n" : "imposible\n")
#define printdb(a) printf("%.50lf\n", a) //少数出力
#define printLdb(a) printf("%.50Lf\n", a) //少数出力
#define printdbd(a) printf("%.16lf\n", a) //少数出力(桁少なめ)
#define prints(s) printf("%s\n", s.c_str()) //string出力
#define all(x) (x).begin(), (x).end()
#define allsum(a, b, c) ((a + b) * c / 2.0) //等差数列の和、初項,末項,項数
#define pb push_back
#define priq priority_queue
#define rpriq priq<int, vector<int>, greater<int>>
#define deg_to_rad(deg) (((deg)/360.0L)*2.0L*PI)
#define rad_to_deg(rad) (((rad)/2.0L/PI)*360.0L)
#define Please return
#define AC 0
#define manhattan_dist(a, b, c, d) (abs(a - c) + abs(b - d)) /*(a, b) から (c, d) のマンハッタン距離 */
using ll = long long;
constexpr int INF = 1073741823;
constexpr int MINF = -1073741823;
constexpr ll LINF = ll(4661686018427387903);
constexpr ll MOD = 1000000007;
const long double PI = acosl(-1.0L);
using namespace std;
void scans(string& str) {
char c;
str = "";
scanf("%c", &c);
if (c == '\n')scanf("%c", &c);
while (c != '\n' && c != -1 && c != ' ') {
str += c;
scanf("%c", &c);
}
}
void scanc(char& str) {
char c;
scanf("%c", &c);
if (c == -1)return;
while (c == '\n') {
scanf("%c", &c);
}
str = c;
}
double acot(double x) {
return PI / 2 - atan(x);
}
ll gcd(ll a, ll b) {
if (b == 0) return a;
return gcd(b, a % b);
}
ll lcm(ll number1, ll number2) {
return number1 / gcd(number1, number2) * number2;
}
ll LSB(ll n) { return (n & (-n)); }
/*-----------------------------------------ここからコード-----------------------------------------*/
//セグ木/0-indexed/非再帰/(大きさ, 単位元)で初期化
template<typename T>
struct segtree {
//木を配列であらわしたもの
vector<T> seg;
//木の1/2の大きさ
int siz;
//単位元
const T unit;
//比較関数の型
using F = function<T(T, T)>;
//マージする関数
const F f;
//n の大きさ, a (単位元) で segtree を初期化する
segtree(int n, const T a, const F f) : unit(a), f(f) {
siz = 1;
while (siz < n)siz <<= 1;
seg.assign(2 * siz - 1, unit);
--siz;
}
//k (0-indexed) 番目に t を代入
void set(int k, const T& t) {
seg[k + siz] = t;
}
//f によって木を構築
void build() {
for (int i = siz - 1; i >= 0; --i) seg[i] = f(seg[i * 2 + 1], seg[i * 2 + 2]);
}
//i 番目の要素を返す
T operator[](const int i) {
return seg[i + siz];
}
//k 番目の値を a に更新,更新に使う二項演算
void update(int k, T a) {
k += siz;
//必要であればここを変える
seg[k] = a;
while (k > 0) {
k = ((k - 1) >> 1);
seg[k] = f(seg[k * 2 + 1], seg[k * 2 + 2]);
}
}
//[a, b) について f した結果を返す
T query(int a, int b) {
T l = unit, r = unit;
for (a += siz, b += siz; a < b; a >>= 1, b >>= 1) {
if (!(a & 1))l = f(l, seg[a++]);
if (!(b & 1))r = f(seg[--b], r);
}
return f(l, r);
}
//[start, end) について、[l, r) を調べながら k 番目が check を満たすか二分探索 最後が true なら left, false なら right fの逆演算
template<typename C>
int find(const int start, const int end, int l, int r, int k, const C check, T& checknum, const bool b, const function<T(T, T)> revf) {
//cerr << checknum << '\n';
//範囲外またはそこがすでに満たさないとき
//cerr << k << ',' << checknum << '\n';
if (start <= l && r <= end && !check(seg[k], checknum)) {
checknum = revf(checknum, seg[k]);
return -1;
}
if ((r <= start || l >= end)) {
return -1;
}
//既に葉
if (k >= siz) {
return k - siz;
}
int res;
if (b) {
//左側を調べる
res = find< C >(start, end, l, ((l + r) >> 1), (k << 1) + 1, check, checknum, b, revf);
//左側が適してたらそれが答え
if (res != -1)return (res);
return find< C >(start, end, ((l + r) >> 1), r, (k << 1) + 2, check, checknum, b, revf);
}
else {
//右側を調べる
res = find< C >(start, end, ((l + r) >> 1), r, (k << 1) + 2, check, checknum, b, revf);
//右側が適してたらそれが答え
if (res != -1)return (res);
return find< C >(start, end, l, ((l + r) >> 1), (k << 1) + 1, check, checknum, b, revf);
}
}
template<typename C>
int find_left(int start, int end, const C check, T checknum, function<T(T, T)> revf) {
return find< C >(start, end, 0, siz + 1, 0, check, checknum, true, revf);
}
template<typename C>
int find_right(int start, int end, const C check, T checknum, function<T(T, T)> revf) {
return find< C >(start, end, 0, siz + 1, 0, check, checknum, false, revf);
}
};
template< int mod >
struct ModInt {
int x;
ModInt() : x(0) {}
ModInt(ll y) : x(y >= 0 ? y % mod : (mod - (-y) % mod) % mod) {}
ModInt& operator+=(const ModInt& p) {
if ((x += p.x) >= mod) x -= mod;
return *this;
}
ModInt& operator-=(const ModInt& p) {
if ((x += mod - p.x) >= mod) x -= mod;
return *this;
}
ModInt& operator*=(const ModInt& p) {
x = (int)(1LL * x * p.x % mod);
return *this;
}
ModInt& operator/=(const ModInt& p) {
*this *= p.inverse();
return *this;
}
ModInt operator-() const { return ModInt(-x); }
ModInt operator+(const ModInt& p) const { return ModInt(*this) += p; }
ModInt operator-(const ModInt& p) const { return ModInt(*this) -= p; }
ModInt operator*(const ModInt& p) const { return ModInt(*this) *= p; }
ModInt operator/(const ModInt& p) const { return ModInt(*this) /= p; }
bool operator==(const ModInt& p) const { return x == p.x; }
bool operator!=(const ModInt& p) const { return x != p.x; }
bool operator>(const ModInt& p) const { return x > p.x; }
bool operator<(const ModInt& p) const { return x < p.x; }
bool operator<=(const ModInt& p) const { return x <= p.x; }
bool operator>=(const ModInt& p) const { return x >= p.x; }
ModInt inverse() const {
int a = x, b = mod, u = 1, v = 0, t;
while (b > 0) {
t = a / b;
swap(a -= t * b, b);
swap(u -= t * v, v);
}
return ModInt(u);
}
ModInt pow(int64_t n) const {
ModInt ret(1), mul(x);
while (n > 0) {
if (n & 1) ret *= mul;
mul *= mul;
n >>= 1;
}
return ret;
}
friend ostream& operator<<(ostream& os, const ModInt& p) {
return os << p.x;
}
friend istream& operator>>(istream& is, ModInt& a) {
ll t;
is >> t;
a = ModInt< mod >(t);
return (is);
}
static int get_mod() { return mod; }
};
using modint = ModInt< MOD >;//MOD=1e9 + 7
using Modint = ModInt< 998244353 >;
int main() {
int n;
scanf("%d", &n);
vector<int> a(n);
rep(i, n)scanf("%d", &a[i]);
segtree<modint> seg(n, 1, multiplies<modint>());
vector<int> m(n + 1);
rep(i, n) {
seg.set(i, abs(a[i]));
m[i + 1] = m[i] + (a[i] < 0);
}
seg.build();
int q;
scanf("%d", &q);
int s, t;
while (q--) {
scanf("%d%d", &s, &t);
--s;
int x = 1;
if ((m[t] - m[s]) % 2)x = -1;
cout << seg.query(s, t).x * x << '\n';
}
Please AC;
}
null