제출 #347619

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
347619		beksultan04	커다란 상품 (IOI17_prize)	C++14	0 / 100	1 ms	364 KiB

prize

#include "prize.h"
//#include "grader.cpp"
#include <bits/stdc++.h>
using namespace std;
#define lol long long
#define pii pair<int,int>
#define OK puts("OK");
#define NO puts("NO");
#define YES puts("YES");
#define fr first
#define sc second
#define ret return
#define scanl(a) scanf("%lld",&a);
#define scanll(a,b) scanf("%lld %lld",&a, &b);
#define scanlll(a,b,c) scanf("%lld %lld %lld",&a,&b,&c);
#define scan1(a) scanf("%d",&a);
#define scan2(a,b) scanf("%d %d",&a, &b);
#define scan3(a,b,c) scanf("%d %d %d",&a,&b,&c);
#define all(s) s.begin(),s.end()
#define allr(s) s.rbegin()Ñ,s.rend()
#define pb push_back
#define sz(v) (int)v.size()
#define endi puts("");
#define eps 1e-12
const int N = 3e5+12,INF=1e9+7;
int find_best(int n) {
    int mx=0,i,ll=0,rr=n-1;
    while (ll < rr){
        vector <int> x = ask(ll);
        mx = max(mx,x[0]+x[1]);
        if (mx == (x[0]+x[1])){
            int l = ll,r = rr;
            while (r >= l){
                int m = l+r>>1;
                vector <int> y = ask(m);
                if (y == x){
                    ll = m;
                    l = m+1;
                }
                else r = m-1;
            }
        }



        vector <int> y = ask(rr);
        mx = max(mx,y[0]+y[1]);
        if (mx == (y[0]+y[1])){
            int l = ll,r = rr;
            while (r >= l){
                int m = l+r>>1;
                vector <int> z = ask(m);
                if (y == z){
                    rr = m;
                    r = m-1;
                }
                else l = m+1;
            }
        }
        ll++;
        rr--;

    }
    ret ll;
}

컴파일 시 표준 에러 (stderr) 메시지

prize.cpp: In function 'int find_best(int)':
prize.cpp:34:26: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   34 |                 int m = l+r>>1;
      |                         ~^~
prize.cpp:51:26: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   51 |                 int m = l+r>>1;
      |                         ~^~
prize.cpp:27:14: warning: unused variable 'i' [-Wunused-variable]
   27 |     int mx=0,i,ll=0,rr=n-1;
      |              ^

• Subtask 1: 0 / 20
• Subtask 2: 0 / 80