Submission #599138

#	Time	Username	Problem	Language	Result	Execution time	Memory
599138		pakhomovee	The Big Prize (IOI17_prize)	C++17	Compilation error	0 ms	0 KiB

prize

#include "prize.h"
#include <vector>
#include <map>

int find_best(int n) {
    int pr = 0;
    std::map<int, int> d;
    while (pr != n) {
        int l = pr, r = n;
        while (l + 1 < r) {
            int m = (l + r) / 2;
            int have = 0;
            std::vector<int> q = ask(m)[0];
            int lt = q[0];
            int rt = q[1];
            for (auto [x, y] : d) {
                if (lt + rt > x) {
                    have += y;
                }
            }
            if (lt - have) {
                r = m;
            } else {
                l = m;
            }
        }
        std::vector<int> arr = ask(l);
        if (arr[0] == arr[1] && arr[0] == 0) {
            return l;
        }
        ++d[arr[0] + arr[1]];
        pr = l + 1;
    }
    return -1;
}

Compilation message (stderr)

prize.cpp: In function 'int find_best(int)':
prize.cpp:13:42: error: conversion from '__gnu_cxx::__alloc_traits<std::allocator<int>, int>::value_type' {aka 'int'} to non-scalar type 'std::vector<int>' requested
   13 |             std::vector<int> q = ask(m)[0];
      |                                          ^