#include <bits/stdc++.h>
using namespace std;
#ifndef _WIN32
#define getchar getchar_unlocked
#endif
#define MP make_pair
#define PB push_back
#define ST first
#define ND second
#define ALL(x) (x).begin(),(x).end()
#define SZ(x) ((int)(x).size())
//#define int LLI
#define FOR(i,a,b) for(int i = (a); i <= (b); ++i)
#define REP(i,n) FOR(i,0,(int)(n)-1)
#define F1(i,n) FOR(i,1,n)
typedef long long LLI;
typedef unsigned long long LLU;
typedef long double LD;
typedef pair<int, int> pii;
typedef pair<LLI, LLI> pll;
typedef vector<int> vi;
#ifdef ONLINE_JUDGE
ostream cnull(NULL);
#define cerr cnull
#endif
template<class TH> void _dbg(const char *sdbg, TH h){cerr<<sdbg<<"="<<h<<"\n";}
template<class TH, class... TA> void _dbg(const char *sdbg, TH h, TA... a) {
while(*sdbg!=',') cerr<<*sdbg++;
cerr<<"="<<h<<",";
_dbg(sdbg+1, a...);
}
#define dbg(...) _dbg(#__VA_ARGS__, __VA_ARGS__)
#define dbgV(R) {cerr << #R << "=["; for(int e : R) cerr << e << ", "; cerr << "E]\n";}
#define dbgA(R, n) {cerr << #R << "=["; for(int i = 0; i <= n; ++i) cerr << R[i] << ", "; cerr << "E]\n";}
#define boost ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0)
vector<int> dzielniki;
int n, cnt;
void spr(int a, int b){
int c = n - a - b;
if(b < c && a < b && c % a == 0 && c % b == 0 && b % a == 0){
++cnt;
}
}
int32_t main()
{
boost;
cin >> n;
for(int i = 1; i*i <= n; ++i){
if(n % i == 0) {
dzielniki.PB(i);
if(n / i != i) dzielniki.PB(n / i);
}
}
for(int i = 0; i < SZ(dzielniki); ++i){
int a = dzielniki[i];
int rest = n - a;
for(int j = 1; j*j <= rest; ++j){
if(rest % j == 0){
if(j > a){
spr(a, j);
}
if(j != rest / j && rest / j > a){
spr(a, rest / j);
}
}
}
}
cout << cnt;
}
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 | #include <bits/stdc++.h> using namespace std; #ifndef _WIN32 #define getchar getchar_unlocked #endif #define MP make_pair #define PB push_back #define ST first #define ND second #define ALL(x) (x).begin(),(x).end() #define SZ(x) ((int)(x).size()) //#define int LLI #define FOR(i,a,b) for(int i = (a); i <= (b); ++i) #define REP(i,n) FOR(i,0,(int)(n)-1) #define F1(i,n) FOR(i,1,n) typedef long long LLI; typedef unsigned long long LLU; typedef long double LD; typedef pair<int, int> pii; typedef pair<LLI, LLI> pll; typedef vector<int> vi; #ifdef ONLINE_JUDGE ostream cnull(NULL); #define cerr cnull #endif template<class TH> void _dbg(const char *sdbg, TH h){cerr<<sdbg<<"="<<h<<"\n";} template<class TH, class... TA> void _dbg(const char *sdbg, TH h, TA... a) { while(*sdbg!=',') cerr<<*sdbg++; cerr<<"="<<h<<","; _dbg(sdbg+1, a...); } #define dbg(...) _dbg(#__VA_ARGS__, __VA_ARGS__) #define dbgV(R) {cerr << #R << "=["; for(int e : R) cerr << e << ", "; cerr << "E]\n";} #define dbgA(R, n) {cerr << #R << "=["; for(int i = 0; i <= n; ++i) cerr << R[i] << ", "; cerr << "E]\n";} #define boost ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0) vector<int> dzielniki; int n, cnt; void spr(int a, int b){ int c = n - a - b; if(b < c && a < b && c % a == 0 && c % b == 0 && b % a == 0){ ++cnt; } } int32_t main() { boost; cin >> n; for(int i = 1; i*i <= n; ++i){ if(n % i == 0) { dzielniki.PB(i); if(n / i != i) dzielniki.PB(n / i); } } for(int i = 0; i < SZ(dzielniki); ++i){ int a = dzielniki[i]; int rest = n - a; for(int j = 1; j*j <= rest; ++j){ if(rest % j == 0){ if(j > a){ spr(a, j); } if(j != rest / j && rest / j > a){ spr(a, rest / j); } } } } cout << cnt; } |
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