Go: package main

import (
    "fmt"
    "sort"
)

type Player struct {
    Name int
    Score  int
}

type Place []Player

func (p Place) Len() int {
    return len(p)
}

func (p Place) Swap(i, j int) {
    p[i], p[j] = p[j], p[i]
}

func (p Place) Less(i, j int) bool {

	if p[i].Score == p[j].Score {
		return p[i].Name < p[j].Name
	} else {
		return p[i].Score > p[j].Score
	}
   
}

func DataEntry(n int) Place {
	var id, sc int
	var ranking Place
	var adding Player

	for i := 0; i < n; i++ {

		fmt.Scan(&id, &sc)

		adding.Name = id
		adding.Score = sc

		ranking = append(ranking, adding)
	}

	return ranking
}

func main() {
	var ranking Place
	var num int

		fmt.Scan(&num)
		ranking = DataEntry(num)
	
	sort.Sort(Place(ranking))
	fmt.Println(ranking[0].Name ,ranking[0].Score)
}

C++: #include <stdio.h> // C++???????????????
#include <string.h> // c++???????????????
#include <math.h> // c++???????????????
#include <iostream>
#include <string>
#include <stack>
#include <queue>
#include <map>
#include <algorithm>
using namespace std;

typedef long long int lli;
#define PI 3.1415926535897932
#define N 100
#define MAX(a,b) ((a>b)?(a):(b)) // ?????§????????????
#define MIN(a,b) ((a<b)?(a):(b)) // ????°?????????????
#define INRANGE(a,b,c) ((a<=b&&b<=c)?(1):(0)) // a<=b<=c??????????????????????????????


void swap(int &a, int &b) { // c??????*
	int w = a;
	a = b;
	b = w;
}

int getdigit(int num) { // ??´??°????????°?????????
	int i, j;
	if (num<0) num *= -1; // ?????°???????????¢
	if (num == 0)return 1;
	for (i = 10, j = 1;; i *= 10, j++) {
		if (INRANGE(i / 10, num, i - 1))return j;
	}
	return 0; // ????????¨??????
}

int getN(int num, int digit) {
	int i = 1, j;
	for (j = 1; j<digit; i *= 10, j++);
	return (num / i) % 10;
}

int zeller(int y, int m, int d) { // 0????????\????????§??????
	if (m<3) { y--; m += 12; }
	return (y + y / 4 - y / 100 + y / 400 + (13 * m + 8) / 5 + d) % 7;
}

int gcd(int a, int b) {	// ?????§??¬?´???°
	if (b == 0) return a;
	return gcd(b, a%b);
}

int lcm(int a, int b) {	// ????°???¬?????°
	return a*b / gcd(a, b);
}

int stoi(const string str) { // ?????????????????´??°
	int i = 0, j;
	int len = str.length();
	int w = 0;
	for (i = 1, j = 1; i <= len && INRANGE('0', str[len - i], '9'); i++, j *= 10) {
		w += (str[len - i] - '0')*j;
	}
	if (str[0] == '-')w *= -1;
	return w;
}

string itos(int a) { // ??´??°???????????????
	int i;
	string str = "";
	int keta;
	if (a<0) { str += '-'; a *= -1; } // ?????°??????????????????
	for (keta = 10; a / keta != 0; keta *= 10);
	for (i = keta / 10; i != 0; i /= 10) {
		str += ((a / i) % 10) + '0';
	}
	return str;
}

int main(void) {
	map<int, int> m;
	map<int, int>::iterator it;
	pair<int, int> pp;
	pair<int, int> ps;
	pair<int, int> pmax;
	int n, q;
	int a, v;
	int max;
	bool flag;
	scanf("%d", &n);
	scanf("%d", &q);
	pp.first = 0; // ???????????????
	pp.second = 0; // ??????
	ps.first = 0;
	ps.second = 0;
	while (q--) {
		flag = false;
		scanf("%d %d", &a, &v);
		if (a == pp.first) flag = true;
		m[a] += v;
		if (v >= 0) {
			if (pp.second < m[a]) {
				ps.first = pp.first;
				ps.second = pp.second;
				pp.first = a;
				pp.second = m[a];
			}
			else if (pp.second == m[a] && pp.first>a) {
				ps.first = pp.first;
				pp.first = a;
			}
		}
		else {
			max;
			for (it = m.begin(); it != m.end(); it++) {
				if (max < it->second) {
					max = it->second;
					pmax = *it;
				}
			}
		}
		cout << pp.first << " " << pp.second << endl;
	}
	return 0;
}

C++: #include <iostream>
#include <bitset>
#include <fstream>
#include <string>
#include <cstring>
#include <cmath>
#include <cstdlib>
#include <ctime>
#include <vector>
#include <algorithm>
#include <numeric>
#include <map>
#include <set>
#include <stack>
#include <queue>
#include <deque>
#include <functional>
#include <cctype>
#include <list>
#include <limits>
#include <unordered_map>
#define Debug 0
//#include <boost/multiprecision/cpp_int.hpp>

const double EPS = (1e-10);


using namespace std;
using Int = long long;
//using namespace boost::multiprecision;

const Int MOD = 1000000007;

Int mod_pow(Int x, Int n) {
    Int res = 1;
    while(n > 0) {
        if(n & 1) res = (res * x) % MOD; //ビット演算(最下位ビットが1のとき)
        x = (x * x) % MOD;
        n >>= 1; //右シフト(n = n >> 1)
    }
    return res;
}

//最大公約数
template<typename T>
T gcd(T a, T b) {
    return b != 0 ? gcd(b, a % b) : a;
}

//最小公倍数
template<typename T>
T lcm(T a, T b) {
    return a * b / gcd(a, b);
}

vector<pair<int, int>> pa;
int main(){
    int N; cin >> N;
    int ma = 0;
    int ma_i = 1000;
    for (int i = 0; i < N; i++) {
        int a, b; cin >> a >> b;
        pa.push_back({a, b});
        if (b > ma) ma = b;
    }
    for (auto i: pa) {
        if (i.second == ma) {
            if (ma_i > i.first) ma_i = i.first;
        }
    }
    for (auto i: pa) {
        if (i.first == ma_i) {
            cout << i.first << " " << i.second << endl;
            break;
        }
    }

}