Submission #1075908

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1075908	2024-08-26T09:43:22 Z	mdn2002	The Big Prize (IOI17_prize)	C++14	Compilation error	0 ms	0 KB

prize

#include "prize.h"
#include<bits/stdc++.h>
using namespace std;
map<int, pair<int, int>> mp;
int askk (int x) {
    if (mp.count(x) == 0) return mp[x] = ask(x);
    return mp[x];
}
int find_best(int n) {
	int mx = 0, lim = 500;
	for (int i = 0; i < min(n, lim); i ++) {
        vector<int> a = askk(i);
        mx = max(mx, a[0] + a[1]);
        if (a[0] + a[1] == 0) return i;
	}

	for (int i = 0; i < n; i ++) {
        vector<int> a = askk(i);
        if (a[0] + a[1] == mx) {
            if (i + 220 < n) {
                vector<int> c = askk(i + 220);
                if (a[1] == c[1]) {
                    i += 220;
                    continue;
                }
            }
            int l = 0, r = 220;
            while (l < r) {
                int mid = (l + r) / 2;
                if (i + mid >= n) r = mid;
                else {
                    vector<int> b = askk(i + mid);
                    if (a[1] == b[1]) l = mid + 1;
                    else r = mid;
                }
            }
            i += l - 1;
        }
        else if (a[0] + a[1] == 0) return i;
	}
}

Compilation message

prize.cpp: In function 'int askk(int)':
prize.cpp:6:47: error: no match for 'operator=' (operand types are 'std::map<int, std::pair<int, int> >::mapped_type' {aka 'std::pair<int, int>'} and 'std::vector<int>')
    6 |     if (mp.count(x) == 0) return mp[x] = ask(x);
      |                                               ^
In file included from /usr/include/c++/10/bits/stl_algobase.h:64,
                 from /usr/include/c++/10/vector:60,
                 from prize.h:1,
                 from prize.cpp:1:
/usr/include/c++/10/bits/stl_pair.h:390:7: note: candidate: 'std::pair<_T1, _T2>& std::pair<_T1, _T2>::operator=(typename std::conditional<std::__and_<std::is_copy_assignable<_T1>, std::is_copy_assignable<_T2> >::value, const std::pair<_T1, _T2>&, const std::__nonesuch&>::type) [with _T1 = int; _T2 = int; typename std::conditional<std::__and_<std::is_copy_assignable<_T1>, std::is_copy_assignable<_T2> >::value, const std::pair<_T1, _T2>&, const std::__nonesuch&>::type = const std::pair<int, int>&]'
  390 |       operator=(typename conditional<
      |       ^~~~~~~~
/usr/include/c++/10/bits/stl_pair.h:393:41: note:   no known conversion for argument 1 from 'std::vector<int>' to 'std::conditional<true, const std::pair<int, int>&, const std::__nonesuch&>::type' {aka 'const std::pair<int, int>&'}
  390 |       operator=(typename conditional<
      |                 ~~~~~~~~~~~~~~~~~~~~~    
  391 |   __and_<is_copy_assignable<_T1>,
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~        
  392 |          is_copy_assignable<_T2>>::value,
      |          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  393 |   const pair&, const __nonesuch&>::type __p)
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_pair.h:401:7: note: candidate: 'std::pair<_T1, _T2>& std::pair<_T1, _T2>::operator=(typename std::conditional<std::__and_<std::is_move_assignable<_Tp>, std::is_move_assignable<_T2> >::value, std::pair<_T1, _T2>&&, std::__nonesuch&&>::type) [with _T1 = int; _T2 = int; typename std::conditional<std::__and_<std::is_move_assignable<_Tp>, std::is_move_assignable<_T2> >::value, std::pair<_T1, _T2>&&, std::__nonesuch&&>::type = std::pair<int, int>&&]'
  401 |       operator=(typename conditional<
      |       ^~~~~~~~
/usr/include/c++/10/bits/stl_pair.h:404:31: note:   no known conversion for argument 1 from 'std::vector<int>' to 'std::conditional<true, std::pair<int, int>&&, std::__nonesuch&&>::type' {aka 'std::pair<int, int>&&'}
  401 |       operator=(typename conditional<
      |                 ~~~~~~~~~~~~~~~~~~~~~
  402 |   __and_<is_move_assignable<_T1>,
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  403 |          is_move_assignable<_T2>>::value,
      |          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  404 |   pair&&, __nonesuch&&>::type __p)
      |   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_pair.h:418:2: note: candidate: 'template<class _U1, class _U2> typename std::enable_if<std::__and_<std::is_assignable<_T1&, const _U1&>, std::is_assignable<_T2&, const _U2&> >::value, std::pair<_T1, _T2>&>::type std::pair<_T1, _T2>::operator=(const std::pair<_U1, _U2>&) [with _U1 = _U1; _U2 = _U2; _T1 = int; _T2 = int]'
  418 |  operator=(const pair<_U1, _U2>& __p)
      |  ^~~~~~~~
/usr/include/c++/10/bits/stl_pair.h:418:2: note:   template argument deduction/substitution failed:
prize.cpp:6:47: note:   'std::vector<int>' is not derived from 'const std::pair<_T1, _T2>'
    6 |     if (mp.count(x) == 0) return mp[x] = ask(x);
      |                                               ^
In file included from /usr/include/c++/10/bits/stl_algobase.h:64,
                 from /usr/include/c++/10/vector:60,
                 from prize.h:1,
                 from prize.cpp:1:
/usr/include/c++/10/bits/stl_pair.h:430:2: note: candidate: 'template<class _U1, class _U2> typename std::enable_if<std::__and_<std::is_assignable<_T1&, _U1&&>, std::is_assignable<_T2&, _U2&&> >::value, std::pair<_T1, _T2>&>::type std::pair<_T1, _T2>::operator=(std::pair<_U1, _U2>&&) [with _U1 = _U1; _U2 = _U2; _T1 = int; _T2 = int]'
  430 |  operator=(pair<_U1, _U2>&& __p)
      |  ^~~~~~~~
/usr/include/c++/10/bits/stl_pair.h:430:2: note:   template argument deduction/substitution failed:
prize.cpp:6:47: note:   'std::vector<int>' is not derived from 'std::pair<_T1, _T2>'
    6 |     if (mp.count(x) == 0) return mp[x] = ask(x);
      |                                               ^
prize.cpp:7:16: error: cannot convert 'std::map<int, std::pair<int, int> >::mapped_type' {aka 'std::pair<int, int>'} to 'int' in return
    7 |     return mp[x];
      |                ^
prize.cpp: In function 'int find_best(int)':
prize.cpp:12:29: error: conversion from 'int' to non-scalar type 'std::vector<int>' requested
   12 |         vector<int> a = askk(i);
      |                         ~~~~^~~
prize.cpp:18:29: error: conversion from 'int' to non-scalar type 'std::vector<int>' requested
   18 |         vector<int> a = askk(i);
      |                         ~~~~^~~
prize.cpp:21:37: error: conversion from 'int' to non-scalar type 'std::vector<int>' requested
   21 |                 vector<int> c = askk(i + 220);
      |                                 ~~~~^~~~~~~~~
prize.cpp:32:41: error: conversion from 'int' to non-scalar type 'std::vector<int>' requested
   32 |                     vector<int> b = askk(i + mid);
      |                                     ~~~~^~~~~~~~~
prize.cpp:41:1: warning: control reaches end of non-void function [-Wreturn-type]
   41 | }
      | ^