oj.uz

Submission #44110

# Submission time Handle Problem Language Result Execution time Memory
44110 2018-03-29T23:57:18 Z imaxblue Strongbox (POI11_sej) C++17
35 / 100
 1000 ms 2956 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define mp make_pair
#define pb push_back
#define x first
#define y second
#define pii pair<int, int>
#define p3i pair<pii, int>
#define pll pair<ll, ll>
#define p3l pair<pll, ll>
#define lseg L, (L+R)/2, N*2+1
#define rseg (L+R)/2+1, R, N*2+2
#define ub upper_bound
#define lb lower_bound
#define pq priority_queue
#define MN 1000000007
#define fox(k, x) for (int k=0; k<x; ++k)
#define fox1(k, x) for (int k=1; k<=x; ++k)
#define foxr(k, x) for (int k=x-1; k>=0; --k)
#define fox1r(k, x) for (int k=x; k>0; --k)
#define ms multiset
#define flood(x) memset(x, 0x3f3f3f3f, sizeof x)
#define drain(x) memset(x, 0, sizeof x)
#define rng() ((rand() << 14)+rand())
#define scan(X) do{while((X=getchar())<'0'); for(X-='0'; '0'<=(_=getchar()); X=(X<<3)+(X<<1)+_-'0');}while(0)
char _;
#define pi 3.14159265358979323846

ll gcd(ll x, ll y){return y==0?x:gcd(y, x%y);}

vector<ll> f, f2;
ll d;
ll n, a[250005], k, g;
void factor(ll X, vector<ll>&f){
    for (ll l=1; l*l<=X; ++l){
        if (X%l==0){
            f.pb(l);
            if (l*l!=X) f.pb(X/l);
        }
    }
    sort(f.begin(), f.end());
}
bool check(ll G){
    fox(l, n){
        if ((a[l]%g)%G==0) return 0;
    }
    return 1;
}
set<ll> done;
int main(){
    scanf("%lli%lli", &d, &n);
    --n; fox(l, n) scanf("%lli", &a[l]);
    scanf("%lli", &k);
    g=gcd(k, d);
    //return 0;
    //cout << k << ' ' << d << ' ' << g << endl;
    factor(g, f);
    ll ans;
    foxr(l, f.size()){
        if (done.count(f[l])) continue;
        //cout << f[l] << endl;
        if (check(f[l])){
            ans=d/f[l];
        }
        f2.clear();
        factor(f[l], f2);
        fox(l2, f2.size()){
            done.insert(f2[l]);
        }
    }
    cout << ans;
    return 0;
}

Compilation message

sej.cpp: In function 'int main()':
sej.cpp:18:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
 #define fox(k, x) for (int k=0; k<x; ++k)
sej.cpp:68:13:
         fox(l2, f2.size()){
             ~~~~~~~~~~~~~         
sej.cpp:68:9: note: in expansion of macro 'fox'
         fox(l2, f2.size()){
         ^~~
sej.cpp:52:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lli%lli", &d, &n);
     ~~~~~^~~~~~~~~~~~~~~~~~~~
sej.cpp:53:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     --n; fox(l, n) scanf("%lli", &a[l]);
                    ~~~~~^~~~~~~~~~~~~~~
sej.cpp:54:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lli", &k);
     ~~~~~^~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 488 KB Output is correct
3 Correct 2 ms 488 KB Output is correct
4 Correct 2 ms 488 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 488 KB Output is correct
2 Correct 2 ms 488 KB Output is correct
3 Correct 2 ms 488 KB Output is correct

Subtask #3
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 488 KB Output is correct
2 Correct 2 ms 512 KB Output is correct
3 Correct 8 ms 696 KB Output is correct

Subtask #4
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 696 KB Output is correct
2 Correct 3 ms 696 KB Output is correct
3 Correct 64 ms 696 KB Output is correct

Subtask #5
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 696 KB Output is correct
2 Correct 2 ms 696 KB Output is correct
3 Correct 26 ms 696 KB Output is correct
4 Correct 758 ms 772 KB Output is correct

Subtask #6
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 772 KB Output is correct
2 Correct 20 ms 772 KB Output is correct
3 Correct 2 ms 772 KB Output is correct
4 Execution timed out 1075 ms 1140 KB Time limit exceeded

Subtask #7
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 61 ms 1140 KB Output is correct
2 Correct 44 ms 1140 KB Output is correct
3 Correct 255 ms 1140 KB Output is correct
4 Execution timed out 1081 ms 1140 KB Time limit exceeded

Subtask #8
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 218 ms 1140 KB Output is correct
2 Correct 10 ms 1140 KB Output is correct
3 Correct 2 ms 1140 KB Output is correct
4 Execution timed out 1062 ms 1140 KB Time limit exceeded

Subtask #9
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1140 KB Output is correct
2 Correct 18 ms 1140 KB Output is correct
3 Correct 2 ms 1140 KB Output is correct
4 Execution timed out 1086 ms 1140 KB Time limit exceeded

Subtask #10
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1140 KB Output is correct
2 Correct 27 ms 1140 KB Output is correct
3 Correct 175 ms 1140 KB Output is correct
4 Execution timed out 1075 ms 1152 KB Time limit exceeded

Subtask #11
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 254 ms 1404 KB Output is correct
2 Correct 713 ms 1660 KB Output is correct
3 Execution timed out 1079 ms 1788 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #12
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 126 ms 2172 KB Output is correct
2 Correct 59 ms 2172 KB Output is correct
3 Execution timed out 1078 ms 2428 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #13
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 119 ms 2556 KB Output is correct
2 Correct 94 ms 2560 KB Output is correct
3 Execution timed out 1072 ms 2856 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #14
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 198 ms 2856 KB Output is correct
2 Correct 94 ms 2856 KB Output is correct
3 Execution timed out 1083 ms 2956 KB Time limit exceeded
4 Halted 0 ms 0 KB -