c++ - error in compilation in codeforces -


can me in 

#include <iostream> #include <stdio.h> #include <algorithm> using namespace std; #define ll long long int struct points{ ll a; ll b; }; int cos(points x , points y) {     return x.b<y.b; } int main() {    ll n,r,avg,i,j,k;    points pt[100005];    cin>>n>>r>>avg;    for(i=0;i<n;i++)    {        cin>>pt[i].a>>pt[i].b;    }    sort(pt,pt+n,cos);    ll sum=avg*n;    for(i=0;i<n;i++)sum-=pt[i].a;    if(sum<=0)cout<<"0\n";    else    {     ll ans=0;    for(i=0;i<n;i++)    {        if(sum==0)break;        else        {            if(sum>r-pt[i].a)            {                ans=ans+pt[i].b*(r-pt[i].a);                sum=sum-(r-pt[i].a);            }            else            {                ans=ans+sum*pt[i].b;                sum-=sum;            }        }    }    cout<<ans<<endl;    }     return 0; }

when im compiling in system working fine , getting correct output when i'm submitting in codeforces under gnuc++ 11 im getting compllation error? can u me

your compare function, cos(), collides function in standard <cmath>. rename , compile.


Comments

Post a Comment

Popular posts from this blog

node.js - Using Node without global install -

i'm working on few node & electron (atom shell) projects , i'm curious how them work without user having install node globally. i've seen few applications including node directory in project contains node.exe binary. how go setting node project use binary? edit: thought should add, i've searched everywhere answer this, unrelated results.
Read more

How to access a php class file from PHPFox framework into javascript code written in simple HTML file? -

i've website developed using phpfox v3.0.7 . now i'm trying implement 'sse(server sent events)' 1 of php files. reference i'm giving below necessary code part of file. file titled process.class.php , present @ location /var/www/module/notification/include/service/process.class.php present on server having ip http://34.124.40.142/ . <?php /** * [phpfox_header] */ header('content-type: text/event-stream'); header('cache-control: no-cache'); defined('phpfox') or exit('no dice!'); /** * * * @copyright [phpfox_copyright] * @author raymond benc * @package phpfox_service * @version $id: service.class.php 67 2009-01-20 11:32:45z raymond_benc $ */ class notification_service_process extends phpfox_service { /** * class constructor */ public function __construct() { $this->_stable = phpfox::gett('notification'); } public function add($...
Read more

java - Null response to php query in android, even though php works properly -

Image
table i'm trying retrieve above data using 2 php files below. want pass email parameter , return bets user = email. work fine when tested advanced rest client, problem not php. however, when try through android 2 java classes below, null pointer exception (logcat below) , json object returned null. i'm not sure error is, think i'm not passing parameter php , that's why it's producing null response. logcat 05-31 15:10:50.227 26074-26074/com.example.albert.betterapp e/androidruntime﹕ fatal exception: main process: com.example.albert.betterapp, pid: 26074 java.lang.runtimeexception: unable start activity componentinfo{com.example.albert.betterapp/com.example.albert.betterapp.displayallbets}: java.lang.nullpointerexception @ android.app.activitythread.performlaunchactivity(activitythread.java:2292) @ android.app.activitythread.handlelaunchactivity(activitythread.java:2350) @ android.app.activitythread.acce...
Read more