Submission #1078329

#	Time	Username	Problem	Language	Result	Execution time	Memory
1078329		horiaboeriu	Infinite Race (EGOI24_infiniterace2)	C++17	100 / 100	26 ms	2456 KiB

Main

#include <stdio.h>
#include <stdlib.h>
#define MAXN 200000
int f[MAXN];//in f[x] este 0 daca x este in fata si 1 daca ea este in fata pe teren
int main()
{
    int n, q, i, x, rez, ul;
    scanf("%d%d", &n, &q);
    rez = 0;
    ul = 1;
    for (i = 1; i <= q; i++) {
        scanf("%d", &x);
        if (x < 0) {
            f[-x] = 0;
        } else {
            if (f[x] >= ul) {
                rez++;
                //acum il intrece doar pe x, deci da o tura intreaga si restul din fata ei raman in fata si cele din spate dupa ce face tura vor ajunge in fata
                ul = i;
            }
            f[x] = i;
        }
    }
    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:12:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |         scanf("%d", &x);
      |         ~~~~~^~~~~~~~~~

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