Submission #202951

#	Time	Username	Problem	Language	Result	Execution time	Memory
202951		MKopchev	새로운 문제 (POI11_sej)	C++14	70 / 100	1077 ms	6264 KiB

sej

#include<bits/stdc++.h>
using namespace std;
const int nmax=3e5+42;
int n;
long long total;
long long inp[nmax];
long long output;

vector<long long> to_test;
void trial(long long num)
{
    if(inp[n]%num)return;
    for(int i=1;i<n;i++)
        if(inp[i]%num==0)return;
    printf("%lld\n",total/num);
    exit(0);
}
int main()
{
    scanf("%lld%i",&total,&n);

    for(int i=1;i<=n;i++)scanf("%lld",&inp[i]);

    output=total;
    for(long long i=1;i*i<=total;i++)
        if(total%i==0)
        {
            to_test.push_back(i);
            to_test.push_back(total/i);
        }
    sort(to_test.begin(),to_test.end());

    for(auto k:to_test)
        trial(k);
    return 0;
}

Compilation message (stderr)

sej.cpp: In function 'int main()':
sej.cpp:20:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%lld%i",&total,&n);
     ~~~~~^~~~~~~~~~~~~~~~~~~~
sej.cpp:22:31: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     for(int i=1;i<=n;i++)scanf("%lld",&inp[i]);
                          ~~~~~^~~~~~~~~~~~~~~~

• Subtask 1: 7 / 7
• Subtask 2: 7 / 7
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