Submission #617779

#	Time	Username	Problem	Language	Result	Execution time	Memory
617779		Icebear16	Poi (IOI09_poi)	C++14	100 / 100	278 ms	15988 KiB

poi

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define INF 1e18//change to const int INF=1e18 if causing problem
const ll MOD=998244353;
const ll alt=1e10;
const ll inf=1e9+7;//Precalc is not a bad idea
//#define int ll
#define pb push_back
#define pf push_front
#define mp make_pair
#define fi first
#define se second
#define mod(a) (a+inf)%inf
#define all(a) a.begin(),a.end()
#define rall(a) a.rbegin(),a.rend()
#define sz(a) a.size()

//#pragma GCC optimize("O3,unroll-loops")
//#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
/* run this program using the console pauser or add your own getch, system("pause") or input loop*/

struct triple{
	int b;
	int c;
	int d;
};

bool cmp(triple a,triple aa){
	if(a.b!=aa.b) return a.b>aa.b;
	else{
		if(a.c!=aa.c) return a.c>aa.c;
		else return a.d<aa.d;
	}
}

int32_t main(){
	std::ios_base::sync_with_stdio(false);
//	cin.tie(0)->sync_with_stdio(0);
	int n,t,p;
	cin>>n>>t>>p;
	int a[n][t];
	vector<int> v(t,0);
	vector<triple> e(n);
	for(int i=0;i<n;i++){
		for(int j=0;j<t;j++){
			cin>>a[i][j];
		}
	}
	for(int i=0;i<t;i++){
		for(int j=0;j<n;j++){
			if(a[j][i]==0) v[i]++;
		}
	}
	for(int i=0;i<n;i++){
		for(int j=0;j<t;j++){
			if(a[i][j]==1) a[i][j]=v[j];
		}
	}
	for(int i=0;i<n;i++){
		int y=0,x=0;
		for(int j=0;j<t;j++){
			x+=a[i][j];
			if(a[i][j]>0) y++;
		}
		e[i].b=x;
		e[i].c=y;
		e[i].d=i+1;
	}
	sort(all(e),cmp);
	int ans1,ans2;
	for(int i=0;i<n;i++){
		if(e[i].d==p){
			ans1=e[i].b;
			ans2=i+1;
			break;
		}
	}
	cout<<ans1<<" "<<ans2<<endl;
	return 0;
}
//Icebear16

Compilation message (stderr)

poi.cpp: In function 'int32_t main()':
poi.cpp:79:19: warning: 'ans2' may be used uninitialized in this function [-Wmaybe-uninitialized]
   79 |  cout<<ans1<<" "<<ans2<<endl;
      |                   ^~~~
poi.cpp:79:14: warning: 'ans1' may be used uninitialized in this function [-Wmaybe-uninitialized]
   79 |  cout<<ans1<<" "<<ans2<<endl;
      |              ^~~

• Subtask 1: 100 / 100