Submission #163883

#	Time	Username	Problem	Language	Result	Execution time	Memory
163883		arnold518	Fences (JOI18_fences)	C++14	0 / 100	3 ms	376 KiB

fences

#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

const int MAXN = 100;

struct Line
{
	int x1, y1, x2, y2;
};

int N, C;
Line line[MAXN+10];
double ans;

int main()
{
	int i, j;
	scanf("%d%d", &N, &C);
	for(i=1; i<=N; i++) scanf("%d%d%d%d", &line[i].x1, &line[i].y1, &line[i].x2, &line[i].y2);

	ans=C*8;

	if(line[1].x1==C && line[1].x2==C) ans=min(ans, (double)C*8-min(C, max(line[1].y1, line[1].y2))-max(-C, min(line[1].y1, line[1].y2)));
	if(line[1].y1==C && line[1].y2==C) ans=min(ans, (double)C*8-min(C, max(line[1].x1, line[1].x2))-max(-C, min(line[1].x1, line[1].x2)));

	if(line[1].x1==-C && line[1].x2==-C) ans=min(ans, (double)C*8-min(C, max(line[1].y1, line[1].y2))-max(-C, min(line[1].y1, line[1].y2)));
	if(line[1].y1==-C && line[1].y2==-C) ans=min(ans, (double)C*8-min(C, max(line[1].x1, line[1].x2))-max(-C, min(line[1].x1, line[1].x2)));
	printf("%.10f", ans);
}

Compilation message (stderr)

fences.cpp: In function 'int main()':
fences.cpp:21:9: warning: unused variable 'j' [-Wunused-variable]
  int i, j;
         ^
fences.cpp:22:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &N, &C);
  ~~~~~^~~~~~~~~~~~~~~~
fences.cpp:23:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(i=1; i<=N; i++) scanf("%d%d%d%d", &line[i].x1, &line[i].y1, &line[i].x2, &line[i].y2);
                      ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 18
• Subtask 2: 0 / 33
• Subtask 3: 0 / 49