제출 #282908

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
282908		turbat	커다란 상품 (IOI17_prize)	C++14	컴파일 에러	0 ms	0 KiB

prize

#include<bits/stdc++.h>
#include "prize.h"
using namespace std;
int find_best(int n) {
  	int l, r, mx = -1e9, mid;
    for (int i = 0;i < min(10, n);i++){
      	int ind = rand() % n;
  		vector<int> res = ask(ind);
     	if(res[0] + res[1] == 0)
            return i;
     	mx = mx(mx, ask([i]))
	}
    for(int i = 0; i < n; i++){
        vector<int> res = ask(i);
        if(res[0] + res[1] == 0)
            return i;
        mx = max(mx , res[0]+res[1]);
        if((res[0]+res[1]) < mx) continue;
        l = i + 1;
        r = n - 1;
        while(l <= r){
            ll mid = (l+r)/2;
            vector<int> tmp=ask(mid);
            if(tmp[0]+tmp[1]==0)return mid;
            if(tmp == res){
                i = mid;
                l = mid+1;
            }
            else r = mid-1;
        }
    }
}

컴파일 시 표준 에러 (stderr) 메시지

prize.cpp: In lambda function:
prize.cpp:11:26: error: expected '{' before ')' token
   11 |       mx = mx(mx, ask([i]))
      |                          ^
prize.cpp: In function 'int find_best(int)':
prize.cpp:11:26: error: cannot convert 'find_best(int)::<lambda()>' to 'int'
In file included from prize.cpp:2:
prize.h:4:26: note:   initializing argument 1 of 'std::vector<int> ask(int)'
    4 | std::vector<int> ask(int i);
      |                      ~~~~^
prize.cpp:11:27: error: 'mx' cannot be used as a function
   11 |       mx = mx(mx, ask([i]))
      |                           ^
prize.cpp:22:13: error: 'll' was not declared in this scope; did you mean 'l'?
   22 |             ll mid = (l+r)/2;
      |             ^~
      |             l
prize.cpp:32:1: warning: control reaches end of non-void function [-Wreturn-type]
   32 | }
      | ^