Submission #126546

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
126546	2019-07-08 04:14:58	DodgeBallMan	Strange Device (APIO19_strange_device)	C++14	100 / 100	675 ms	42304 KiB

strange_device

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#include <bits/stdc++.h>
#define pll pair<long long, long long>
#define x first
#define y second
using namespace std;
const long long inf = 1000000000000000000;
int n;
long long a, b, ans, sum;
vector<pll> seg, m;
int chk( long long a, long long b ) {
    long long temp;
    temp = inf / a;
    if( b > temp ) return 1;
    else return 0 ;
}
void process( long long mul ) {
    //cout << mul << endl;
    for( int i = 1 ; i < ( int )seg.size() ; i++ ) {
        if( seg[i].y - seg[i].x + 1 >= mul ) {
            printf("%lld",mul);
            return ;
        }
        long long f = seg[i].x % mul, t = seg[i].y % mul;
        if( t < f ) m.emplace_back( pll( f, mul - 1 ) ), m.emplace_back( pll( 0, t ) );
        else m.emplace_back( pll( f, t ) );
    }
 
 
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Compilation message (stderr)

strange_device.cpp: In function 'void process(long long int)':
strange_device.cpp:33:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for( int i = 0 ; i < m.size() ; i++ ) {
                      ~~^~~~~~~~~~
strange_device.cpp: In function 'int main()':
strange_device.cpp:50:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %lld %lld",&n,&a,&b);
     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
strange_device.cpp:54:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%lld %lld",&ff,&tt);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 5 / 5
• Subtask 3: 5 / 5
• Subtask 4: 5 / 5
• Subtask 5: 5 / 5
• Subtask 6: 20 / 20
• Subtask 7: 20 / 20
• Subtask 8: 30 / 30