nastya2

#include <iostream>
#include <map>
#include <time.h>
#include <stdlib.h>

using namespace std;

void mapprint(multimap<int, double> mp) {
    cout << "Map:" << endl;
    for (multimap<int, double>::iterator iter = mp.begin(); iter != mp.end(); ++ iter)
        cout << iter->first << ":" << iter->second << endl;
}

int main(void) {
    srand(time(NULL));

    int n;
    multimap<int, double> mp;
    cin >> n;
    for (int i = 0; i < n; ++ i)
        mp.insert(pair<int, double>(i, rand() % 100));
    mapprint(mp);

//1
    cout << "1:" << endl;
    auto mx = mp.begin();
    for (auto iter = ++mp.begin(); iter != mp.end(); ++ iter)
        if (iter->second > mx->second)
            mx = iter;
    cout << "Max = " << mx->first << ":" << mx->second << endl;

//2
    cout << endl << "2:" << endl;
    auto mn = mp.begin();
    for (auto iter = ++mp.begin(); iter != mp.end(); ++ iter)
        if (iter->second < mn->second)
            mn = iter;
    cout << "Min = " << mn->first << ":" << mn->second << endl;
    mp.erase(mn);
    mapprint(mp);

//3
    cout << endl << "3:" << endl;
    double s = 0;
    for (auto iter = mp.begin(); iter != mp.end(); ++ iter)
        s += iter->second;
    s /= mp.size();
    cout << "Srednee: " << s << endl;
    for (auto iter = mp.begin(); iter != mp.end(); ++ iter)
        iter->second += s;
    mapprint(mp);

    return 0;
}