Submission #33930

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
33930	2017-11-05 08:54:19	gs14004	목공 (kriii4_A)	C++14	100 / 100	1689 ms	4656 KiB

A

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#include<bits/stdc++.h>
using namespace std;
typedef long long lint;
typedef long double llf;
typedef pair<int, int> pi;
const int mod = 1092616193;
const int prr = 3;
const int MAXN = 16005;
lint ipow(lint x, lint p){
  lint ret = 1, piv = x % mod;
  while(p){
    if(p&1) ret *= piv;
    piv *= piv;
    ret %= mod;
    piv %= mod;
    p >>= 1;
  }
  return ret % mod;
}
void fft(vector<lint> &a, bool inv){
  int n = a.size(), j = 0;
  vector<lint> roots(n/2);
  for(int i=1; i<n; i++){
    int bit = (n >> 1);
    while(j >= bit){
      j -= bit;
      bit >>= 1;
    }
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

A.cpp: In function 'std::vector<long long int> multiply(std::vector<long long int>&, std::vector<long long int>&)':
A.cpp:56:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  while(n < v.size() + w.size()) n <<= 1;
          ^
A.cpp: In function 'int main()':
A.cpp:144:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld",&tb[i]);
                       ^

• Subtask 1: 4 / 4
• Subtask 2: 96 / 96