Submission #1088639

#	Time	Username	Problem	Language	Result	Execution time	Memory
1088639		StefanSebez	Poi (IOI09_poi)	C++14	100 / 100	253 ms	24020 KiB

poi

#include <bits/stdc++.h>
using namespace std;
#define fi first
#define se second
#define pb push_back
int main(){
    int n,m,ind;scanf("%i%i%i",&n,&m,&ind);
    int a[n+10][m+10];
    for(int i=1;i<=n;i++){
		for(int j=1;j<=m;j++) scanf("%i",&a[i][j]);
    }
    int val[m+10]={0};
    for(int j=1;j<=m;j++) for(int i=1;i<=n;i++) if(a[i][j]==0) val[j]++;
    int b[n+10]={0};
    pair<pair<int,int>,int>c[n+10];
    for(int i=1;i<=n;i++){
		int ct=0;
		for(int j=1;j<=m;j++) if(a[i][j]==1) b[i]+=val[j],ct++;
		c[i]={{b[i],ct},-i};
    }
    sort(c+1,c+n+1);reverse(c+1,c+n+1);
    int res=-1,res1;
    for(int i=1;i<=n;i++){
		//printf("%i %i %i\n",c[i].fi.fi,c[i].fi.se,c[i].se);
		if(-c[i].se==ind) res=i,res1=c[i].fi.fi;
    }
    printf("%i %i\n",res1,res);
    return 0;
}

Compilation message (stderr)

poi.cpp: In function 'int main()':
poi.cpp:7:22: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    7 |     int n,m,ind;scanf("%i%i%i",&n,&m,&ind);
      |                 ~~~~~^~~~~~~~~~~~~~~~~~~~~
poi.cpp:10:30: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   10 |   for(int j=1;j<=m;j++) scanf("%i",&a[i][j]);
      |                         ~~~~~^~~~~~~~~~~~~~~

• Subtask 1: 100 / 100