Submission #863812

#	Time	Username	Problem	Language	Result	Execution time	Memory
863812		AtabayRajabli	Poi (IOI09_poi)	C++17	45 / 100	168 ms	39516 KiB

poi

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

// author : AtabeyR

#define pb          push_back
#define pii         pair<int, int>
#define pll         pair<ll, ll>
#define all(v)      v.begin(), v.end()
#define OPT         ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define sec         second
#define fi          first
#define int         ll
#define print(k)    cerr << "Ans : "; cout << k << endl;
#define ins         insert
#define bpc         __builtin_popcountll
#define skip        continue
#define endll        '\n'
#define gcd(a, b)   __gcd(a, b)
#define lcm(a, b)   a*b / (__gcd(a, b))

typedef long long ll;
typedef unsigned long long ull;
const int oo = 0x3F3F3F3F;
const int ooo = 0x3F3F3F3F3F3F3F3FLL;
const int mod = 998244353;
const int sz = 2005;
using namespace std;
using namespace __gnu_pbds;
template<class T> using ordered_set = tree<T, null_type,less<T>, rb_tree_tag,tree_order_statistics_node_update>;

void open(string s)
{
    freopen((s + ".in").c_str(), "r", stdin);
    freopen((s + ".out").c_str(), "w", stdout);
}

int n, m, t, p, a[sz][sz], s[sz];

bool cmp(pii a, pii b)
{
    if(a.fi == b.fi)return a.sec < b.sec;
    return a.fi > b.fi;
}

void solve()
{
    cin >> n >> t >> p;


    for(int i = 1; i<=n; i++)
    {
        for(int j = 1; j<=t; j++)
        {
            cin >> a[i][j];
            s[j] += (a[i][j] == 0);
        }
    }

    vector<pii> v;
    
    for(int i = 1; i<=n; i++)
    {
        int po = 0;
        for(int j = 1; j<=n; j++)po += s[j] * a[i][j];
        v.pb({po, i});
    }

    sort(all(v), cmp);
    int r = 1;
    for(pii x : v)
    {
        if(x.sec == p)
        {
            cout << x.fi << " " << r << endll;
            return;
        }
        else r++;
    }
}

int32_t main()
{
    // open("i");

    OPT
    int t = 1;
    //cin >> t;

    for(int i = 1; i<=t; i++)
        solve();
}

Compilation message (stderr)

poi.cpp: In function 'void open(std::string)':
poi.cpp:35:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   35 |     freopen((s + ".in").c_str(), "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
poi.cpp:36:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   36 |     freopen((s + ".out").c_str(), "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 45 / 100