Submission #407556

#	Time	Username	Problem	Language	Result	Execution time	Memory
407556		LptN21	Baza (COCI17_baza)	C++14	50 / 50	107 ms	9104 KiB

baza

#include <bits/stdc++.h>
using namespace std;
#define fastIO ios_base::sync_with_stdio(false), cin.tie(NULL), cout.tie(NULL);
#define FF first
#define SS second
#define pb push_back
#define sz(x) (int)x.size()
#define oo 1e9
#define eps 1e-9
#define PI acos(-1.0)
#define lb lower_bound
#define ub upper_bound
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int, int> ii;
const int N = 1e3+7, M=13+7;
const int MOD = 1e9+7;

int n, m, k, t;

int a[N][N], b[N];

void qry() {
    int ans=0;
    for(int i=1;i<=m;i++) scanf("%d", &b[i]);
    for(int j, i=1;i<=n;i++) {
        for(j=1;j<=m;j++)
            if(b[j]!=-1&&b[j]!=a[i][j]) break;
        ans+=(j==m+1);
    }
    printf("%d\n", ans);
}

signed main() {
    //freopen("test.inp", "r", stdin);
    //freopen("test.out", "w", stdout);
    //fastIO;
    scanf("%d%d", &n, &m);
    for(int i=1;i<=n;i++)
        for(int j=1;j<=m;j++)
            scanf("%d", &a[i][j]);
    scanf("%d", &k);
    for(int i=1;i<=k;i++) qry();

    return 0;
}
/* stuff you should look for
    - int overflow, array bounds
    - special cases (n=1?)
    - do smth instead of do nothing and stay organized
    - WRITE STUFF DOWN
    - DONT JUST STICK ON ONE APPROACH
*/

Compilation message (stderr)

baza.cpp: In function 'void qry()':
baza.cpp:25:32: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   25 |     for(int i=1;i<=m;i++) scanf("%d", &b[i]);
      |                           ~~~~~^~~~~~~~~~~~~
baza.cpp: In function 'int main()':
baza.cpp:38:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   38 |     scanf("%d%d", &n, &m);
      |     ~~~~~^~~~~~~~~~~~~~~~
baza.cpp:41:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   41 |             scanf("%d", &a[i][j]);
      |             ~~~~~^~~~~~~~~~~~~~~~
baza.cpp:42:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   42 |     scanf("%d", &k);
      |     ~~~~~^~~~~~~~~~

• Subtask 1: 50 / 50