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Code: Select all
Removec after getting AC
Code: Select all
#include <stdio.h>
#include <map>
#include <iterator>
using namespace std;
int main() {
long long n,m,temp;
while(scanf("%llu %llu", &n, &m) == 2){
temp = m;
map<long long,int> div;
for(long long i = 2; i*i<=m && m!=1; i++){
while(m%i == 0){
if(!div.count(i)){
div[i] = 1;
}
else{
div[i]++;
}
m/=i;
}
}
if(m>1){
div[m] = 1;
}
int res = 0;
map<long long,int>:: iterator itr;
for(itr = div.begin(); itr!= div.end(); itr++){
long long divisor = (*itr).first; int freq = (*itr).second;
res = 0;
while(n/divisor > 0){
res+=(n/divisor);
divisor*=divisor;
}
if(res == 0 || res<freq){
res = 0;
break;
}
}
if(res == 0 && temp!=1){
printf("%llu does not divide %llu!\n", temp, n);
}
else{
printf("%llu divides %llu!\n", temp, n);
}
}
return 0;
}
Code: Select all
#ifndef HEADER_H
#define HEADER_H
#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
#include<stdlib.h>
#include<iostream>
#include<vector>
#include<queue>
#include<string>
#include<string.h>
#include<map>
#include<set>
#include<algorithm>
#include<stack>
#include<ctype.h>
#include<cstdlib>
#define F(t,i,s,r) for(t i=s;i<r;i++)
#define FE(t,i,s,r) for(t i=s;i<=r;i++)
#define R(t,i,s,r) for(t i=s;i>r;i--)
#define RE(t,i,s,r) for(t i=s;i>=r;i--)
using namespace std;
//freopen("i.txt", "r", stdin);
//freopen("o.txt","w",stdout);
#endif
#define ll long long
ll primePowInFacto (ll n,ll p) {
ll res = 0;
for (ll pow = p; pow <= n;pow*=p) {
res += n/pow;
}
return res;
}
bool primediv (ll a,ll b) {
if (a == 0||((b==0||b==1)&&a!=1))return false;
else if (a == 1)return true;
else {
ll n = a, c, pc;
for (ll i = 2; i*i <= a; i++) {
c = 0;
while (n > 1 && n%i == 0)
{
c++;
n /= i;
}
if (c > 1) {
pc = primePowInFacto (b, i);
if (pc < c) { return false; }
}
}
if (n > 1) {
c = 1;
pc = primePowInFacto (b, n);
if (pc < c)return false;
}
return true;
}
}
int main () {
ll a, b;
while (cin>>a>>b)
{
if (primediv (b, a)) {
printf ("%lld divides %lld!\n", b, a);
}
else {
printf ("%lld does not divide %lld!\n", b, a);
}
}
}