Submission #577393

#	Time	Username	Problem	Language	Result	Execution time	Memory
577393		Theo830	The Big Prize (IOI17_prize)	C++17	Compilation error	0 ms	0 KiB

prize

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const ll INF = 1e9+7;
const ll MOD = 998244353;
typedef pair<ll,ll> ii;
#define iii pair<ll,ii>
#define ull unsigned int
#define f(i,a,b) for(ll i = a;i < b;i++)
#define pb push_back
#define vll vector<ll>
#define F first
#define S second
#define all(x) (x).begin(), (x).end()
///I hope I will get uprating and don't make mistakes
///I will never stop programming
///sqrt(-1) Love C++
///Please don't hack me
///@TheofanisOrfanou Theo830
///Think different approaches (bs,dp,greedy,graphs,shortest paths,mst)
///Stay Calm
///Look for special cases
///Beware of overflow and array bounds
///Think the problem backwards
///Training
#include "prize.h"
ll maxi = 0;
ll solve(ll l,ll r,ll L,ll R){
    if(l > r){
        return -1;
    }
    ll mid = (l+r)/2;
    vector<int>res = ask(mid);
    if(res[0] == 0 && res[1] == 0){
        return mid;
    }
    if(l == r){
        return -1;
    }
    ll ans;
    ll pos = mid;
    while(pos < r && (res[0] + res[1]) < maxi){
        pos++;
        res = ask(pos);
    }
    if(res[0] + res[1] < maxi){
        pos = mid - 1;
        while(pos > l && (res[0] + res[1]) < maxi){
            pos--;
            res = ask(pos);
        }
    }
    if(res[0] + res[1] == maxi){
        if(res[0] - L > res[1] - R){
            ans = solve(l,mid,L,R + res[1]);
            if(ans == -1){
                ans = solve(mid+1,r,L + res[0],R);
            }
        }
        else{
            ans = solve(mid+1,r,L + res[0],R);
            if(ans == -1){
                ans = solve(l,mid,L,R + res[1]);
            }
        }
    }
    return ans;
}
int find_best(int n){
    srand(time(0));
    ll k = 20;
    while(k--){
        vector<int> res = ask(rand() % n);
        maxi = max(maxi,res[0] + res[1]);
    }
    return solve(0,n-1,0,0);
}

Compilation message (stderr)

prize.cpp: In function 'int find_best(int)':
prize.cpp:74:40: error: no matching function for call to 'max(ll&, __gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type)'
   74 |         maxi = max(maxi,res[0] + res[1]);
      |                                        ^
In file included from /usr/include/c++/10/bits/specfun.h:45,
                 from /usr/include/c++/10/cmath:1927,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
                 from prize.cpp:1:
/usr/include/c++/10/bits/stl_algobase.h:254:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  254 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/10/bits/stl_algobase.h:254:5: note:   template argument deduction/substitution failed:
prize.cpp:74:40: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'})
   74 |         maxi = max(maxi,res[0] + res[1]);
      |                                        ^
In file included from /usr/include/c++/10/bits/specfun.h:45,
                 from /usr/include/c++/10/cmath:1927,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:41,
                 from prize.cpp:1:
/usr/include/c++/10/bits/stl_algobase.h:300:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  300 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/10/bits/stl_algobase.h:300:5: note:   template argument deduction/substitution failed:
prize.cpp:74:40: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'})
   74 |         maxi = max(maxi,res[0] + res[1]);
      |                                        ^
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from prize.cpp:1:
/usr/include/c++/10/bits/stl_algo.h:3480:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(std::initializer_list<_Tp>)'
 3480 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/10/bits/stl_algo.h:3480:5: note:   template argument deduction/substitution failed:
prize.cpp:74:40: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   74 |         maxi = max(maxi,res[0] + res[1]);
      |                                        ^
In file included from /usr/include/c++/10/algorithm:62,
                 from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:65,
                 from prize.cpp:1:
/usr/include/c++/10/bits/stl_algo.h:3486:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(std::initializer_list<_Tp>, _Compare)'
 3486 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/10/bits/stl_algo.h:3486:5: note:   template argument deduction/substitution failed:
prize.cpp:74:40: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   74 |         maxi = max(maxi,res[0] + res[1]);
      |                                        ^