제출 #683499

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
683499		vjudge1	Mobile (BOI12_mobile)	C++17	0 / 100	1022 ms	16212 KiB

mobile

#include <bits/stdc++.h>
using namespace std;
    int i, j;

struct cord
{
    double x,y;
};

int main()
{
    int t, l;
    cin>> t>> l;
    double res[t], k;
    cord r[t];
    for(i=0; i<t; i++)
        cin>> r[i].x>> r[i].y;
    for(i=t-1; i>0; i--)
    {
        k=0.5*(r[i].x+r[i-1].x+(r[i].y*r[i].y-r[i-1].y*r[i-1].y)/(r[i].x-r[i-1].x));
        if(k<=l)
            break;
    }
        printf("%0.6llf", k);
}

컴파일 시 표준 에러 (stderr) 메시지

mobile.cpp: In function 'int main()':
mobile.cpp:24:23: warning: use of 'll' length modifier with 'f' type character has either no effect or undefined behavior [-Wformat=]
   24 |         printf("%0.6llf", k);
      |                       ^
mobile.cpp:14:12: warning: unused variable 'res' [-Wunused-variable]
   14 |     double res[t], k;
      |            ^~~

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