Submission #28086

#	Time	Username	Problem	Language	Result	Execution time	Memory
28086		tlwpdus 팬클럽 회장 (#71)	The Ant and The Bitcoin (FXCUP2_ant)	C++14	0 / 1	0 ms	2800 KiB

ant

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

int n, k;
ll l, t, x[100010], bx;

int main(){
	scanf("%d%lld%lld", &n, &l, &t);
	for(int i = 1; i <= n; i++){
		char buf[3]; ll cx;
		scanf("%lld%s", &cx, buf);
		if(buf[0] == 'R'){
			cx += t;
			cx %= 2 * l;
			if(cx > l) cx = 2 * l - cx;
		}
		else{
			cx = l - cx;
			cx += t;
			cx %= 2 * l;
			if(cx > l) cx = 2 * l - cx;
			cx = l - cx;
		}
		x[i] = cx;
	}
	scanf("%d", &k);
	bx = x[k];
	sort(x + 1, x + n + 1);
	printf("%d\n", int(lower_bound(x + 1, x + n + 1, bx) - x));
}

Compilation message (stderr)

ant.cpp: In function 'int main()':
ant.cpp:9:33: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%lld%lld", &n, &l, &t);
                                 ^
ant.cpp:12:28: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld%s", &cx, buf);
                            ^
ant.cpp:27:17: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &k);
                 ^

• Subtask 1: 0 / 1