oj.uz

Submission #473876

# Submission time Handle Problem Language Result Execution time Memory
473876 2021-09-16T11:02:23 Z HossamHero7 Euklid (COCI20_euklid) C++14
12 / 110
 1000 ms 71060 KB 
#include <bits/stdc++.h>
#include <unordered_map>
using namespace std;
typedef long long ll;
typedef vector <ll> row;
typedef vector <row> matrix;
#define endl '\n'
#define fast ios_base::sync_with_stdio(0);cout.tie(0);cin.tie(0);
#define all(v) ((v).begin()), ((v).end())
#define allR(v) ((v).rbegin()), ((v).rend())
#define For(i,n) for(int i=0;i<(int)(n);i++)
#define sz(v) v.size()
#define swapS(a,b) if(a>b) swap(a,b)
const ll mod = 1e9+7;
const ll OO = 1e18;
const ll invalid = -1e18;
int dx[] = {0,0,-1,1,1,1,-1,-1};
int dy[] = {1,-1,0,0,1,-1,-1,1};
ll fixMod(ll x){
    return ((x%mod) + mod) % mod;
}
ll lcm(ll a,ll b){
    return max(a,b)/__gcd(a,b)*min(a,b);
}
ll power(ll a,ll b){
    if(b==0) return 1;
    if(b==1) return a;
    if(b&1){
        ll y=power(a,b/2);
        return (y*y*a);
    }
    else {
        ll y=power(a,b/2);
        return (y*y);
    }
}
ll inv(ll n){
    return power(n,(mod-2));
}
matrix zero(int n,int m){
    return matrix(n,row(m,0));
}
matrix identity(int n){
    matrix ret = zero(n,n);
    for(int i=0;i<n;i++){
        ret[i][i] = 1;
    }
    return ret;
}
matrix multiply(const matrix &a, const matrix &b){
    matrix ret = zero(a.size(),b[0].size());
    for(int i=0;i<a.size();i++){
        for(int k=0;k<a[0].size();k++){
            for(int j=0;j<b[0].size();j++){
                ret[i][j] += a[i][k] * b[k][j];
                ret[i][j] = ret[i][j];
            }
        }
    }
    return ret;
}
matrix matrixPower(matrix &a,ll b){
    if(b == 0) return identity(a.size());
    if(b == 1) return a;
    matrix r = matrixPower(a,b/2);
    if(b&1) return multiply(multiply(r,r),a);
    return multiply(r,r);
}
ll dp[3005][3005];
ll calc(int a,int b){
    ll &ret = dp[a][b];
    if(~ret) return ret;
    if(a<b) return ret = calc(b,a);
    if(a>=b && b > 1) return ret = calc(a/b,b);
    else return ret = a;
}
void solve(){
    ll g,h;
    cin>>g>>h;
    if(g == h*2){
        cout<<g<<" "<<g*h<<endl;
        return;
    }
    if(h == 2){
        cout<<g<<" "<<g*2<<endl;
        return;
    }
    if(g == h){
        cout<<g<<" "<<h<<endl;
        return;
    }
    for(int i=1;i<=3000;i++){
        for(int j=1;j<=3000;j++){
            if(__gcd(i,j) == g && calc(i,j) == h){
                cout<<i<<" "<<j<<endl;
                return;
            }
        }
    }
}
int main()
{
    fast
    ll t=1;
    cin>>t;
    memset(dp,-1,sizeof(dp));
    while(t--){
        //Some important Notes:
        //  1- Any minus with mod fixed mod
        //  2- Any divide with mod inverse
        //  3- Any mod problem make mod in every where
        //  4- Any dp problem don't forget to return the saved value :)
        solve();
    }
    return 0;
}

Compilation message

euklid.cpp: In function 'matrix multiply(const matrix&, const matrix&)':
euklid.cpp:52:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   52 |     for(int i=0;i<a.size();i++){
      |                 ~^~~~~~~~~
euklid.cpp:53:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   53 |         for(int k=0;k<a[0].size();k++){
      |                     ~^~~~~~~~~~~~
euklid.cpp:54:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   54 |             for(int j=0;j<b[0].size();j++){
      |                         ~^~~~~~~~~~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 30 ms 70896 KB Output is correct
2 Correct 31 ms 70976 KB Output is correct
3 Correct 32 ms 70872 KB Output is correct
4 Correct 32 ms 71060 KB Output is correct
5 Correct 31 ms 70992 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 31 ms 70900 KB Output is correct
2 Correct 32 ms 70988 KB Output is correct
3 Correct 32 ms 70944 KB Output is correct
4 Correct 34 ms 70936 KB Output is correct
5 Correct 31 ms 70972 KB Output is correct
6 Correct 37 ms 70964 KB Output is correct
7 Correct 35 ms 70856 KB Output is correct
8 Correct 35 ms 70972 KB Output is correct
9 Correct 32 ms 70944 KB Output is correct

Subtask #3
0 / 8.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1088 ms 70988 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 70924 KB Output is correct
2 Correct 56 ms 70976 KB Output is correct
3 Incorrect 60 ms 70976 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #5
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 70924 KB Output is correct
2 Correct 56 ms 70976 KB Output is correct
3 Incorrect 60 ms 70976 KB Output isn't correct
4 Halted 0 ms 0 KB -

Subtask #6
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 30 ms 70896 KB Output is correct
2 Correct 31 ms 70976 KB Output is correct
3 Correct 32 ms 70872 KB Output is correct
4 Correct 32 ms 71060 KB Output is correct
5 Correct 31 ms 70992 KB Output is correct
6 Correct 31 ms 70900 KB Output is correct
7 Correct 32 ms 70988 KB Output is correct
8 Correct 32 ms 70944 KB Output is correct
9 Correct 34 ms 70936 KB Output is correct
10 Correct 31 ms 70972 KB Output is correct
11 Correct 37 ms 70964 KB Output is correct
12 Correct 35 ms 70856 KB Output is correct
13 Correct 35 ms 70972 KB Output is correct
14 Correct 32 ms 70944 KB Output is correct
15 Execution timed out 1088 ms 70988 KB Time limit exceeded
16 Halted 0 ms 0 KB -