Submission #1078284

#	Time	Username	Problem	Language	Result	Execution time	Memory
1078284		horiaboeriu	Infinite Race (EGOI24_infiniterace2)	C++17	29 / 100	17 ms	1808 KiB

Main

#include <stdio.h>
#include <stdlib.h>
#define MAXN 200000
char f[MAXN + 1];//in f[x] este 0 daca x este in fata si 1 daca ea este in fata(nu la numarul de ture, ci la cat a parcurs din traseu la turele sale)
int main()
{
    int n, q, i, rez, x, prx;
    scanf("%d%d", &n, &q);
    rez = prx = 0;
    for (i = 0; i < q; i++) {
        scanf("%d", &x);
        if (x < 0) {
            x = -x;
            f[x] = 0;
        } else {
            if (f[x] > 0) {
                if (prx == 0) {
                    prx = x;
                }
                rez += prx == x;
                prx = x;
            }
            f[x] = 1;
        }
    }
    printf("%d\n", rez);
    return 0;
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:8:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    8 |     scanf("%d%d", &n, &q);
      |     ~~~~~^~~~~~~~~~~~~~~~
Main.cpp:11:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   11 |         scanf("%d", &x);
      |         ~~~~~^~~~~~~~~~

• Subtask 1: 29 / 29
• Subtask 2: 0 / 34
• Subtask 3: 0 / 22
• Subtask 4: 0 / 15