Submission #730910

#	Time	Username	Problem	Language	Result	Execution time	Memory
730910		sleepntsheep	Tracks in the Snow (BOI13_tracks)	C++17	2.19 / 100	133 ms	27024 KiB

tracks

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

#define N 5005
char a[N][N]; int n, m, z;

int main()
{
    scanf("%d%d", &n, &m);
    for (int i = 1; i <= n; i++) 
    {
        scanf("%s", a[i] + 1);
        for (int j = 1; j <= m; j++)
        {
            if (a[i][j] == 'F') z |= 1;
            if (a[i][j] == 'R') z |= 2;
        }
    }
    printf("%d", __builtin_popcount(z));
    return 0;
}

Compilation message (stderr)

tracks.cpp: In function 'int main()':
tracks.cpp:9:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |     scanf("%d%d", &n, &m);
      |     ~~~~~^~~~~~~~~~~~~~~~
tracks.cpp:12:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |         scanf("%s", a[i] + 1);
      |         ~~~~~^~~~~~~~~~~~~~~~

• Subtask 1: 0 / 30
• Subtask 2: 2.1875 / 70