Submission #9349

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
9349	2014-09-28 05:47:35	ainu7	Quaternion inverse (kriii2_Q)	C++98	4 / 4	784 ms	1676 KiB

Q

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#include <math.h>
#include <stdio.h>
#include <string.h>
#include <vector>
#include <string>
#include <queue>
#include <map>
#include <algorithm>
#include <cmath>
#include <iostream>
#include <sstream>
#include <set>
using namespace std;
int mmod;
int inv_mod(int a, int b) {
  if (a < 0) return (mmod - inv_mod(-a, b)) % mmod;
  if (a == 1) return b;
  int div = mmod / a + 1;
  return inv_mod((a * (long long)div) % mmod, (b * (long long)div) % mmod);
}
int A[4][4], B[4];
void solve() {
  for (int i=0; i<4; i++) {
    int idx = -1;
    for (int j=i; j<4; j++)
      if (A[j][i]) idx = j;
    if (idx == -1) continue;
 
 
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• Subtask 1: 1 / 1
• Subtask 2: 3 / 3