Submission #506395

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
506395	2022-01-12 03:43:38	Elegia	The short shank; Redemption (BOI21_prison)	C++17	0 / 100	53 ms	8288 KiB

prison

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#include <cmath>
#include <algorithm>
#include <bitset>
#include <numeric>
#include <iostream>
#include <vector>
#include <string>
#include <set>
#include <queue>
#include <map>
#include <unordered_map>
using ull = unsigned long long;
using namespace std;
const int P = 998244353;
int norm(int x) { return x >= P ? x - P : x; }
int reduce(int x) { return x < 0 ? x + P : x; }
int neg(int x) { return x ? P - x : 0; }
void add(int& x, int y) { if ((x += y - P) < 0) x += P; }
void sub(int& x, int y) { if ((x -= y) < 0) x += P; }
void fam(int& x, int y, int z) { x = (x + y * (ull)z) % P; }
int mpow(int x, unsigned k) {
  if (k == 0) return 1;
  int ret = mpow(x * (ull)x % P, k >> 1);
  if (k & 1) ret = ret * (ull)x % P;
  return ret;
 
 
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