Rezumat problemă

Produs_Matrice

#1313

Se citesc doua matrice din fisier . Sa se calculeze produsul lor .

Fișiere Jurj Flaviu-Andrei (jurjstyle) ușoară

Clasa 11 Probleme diverse Matematica

Rezolvă

Detalii

Problema	Produs_Matrice	Operații I/O	produs_matrice.in/produs_matrice.out
Limita timp	0.05 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#64812248	Utilizator	Clejan Andrei (Bossulicou8)
Fișier	produs_matrice.c	Dimensiune	2.07 KB
Data încărcării	02 Iunie 2026, 22:05	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

produs_matrice.c: In function ‘main’:
produs_matrice.c:28:25: warning: unused variable ‘vc’ [-Wunused-variable]
   28 |                 __m256i vc = _mm256_loadu_si256((__m256i*)&C[i][j]);
      |                         ^~
produs_matrice.c:27:25: warning: unused variable ‘vb’ [-Wunused-variable]
   27 |                 __m256i vb = _mm256_loadu_si256((__m256i*)&B[k][j]);
      |                         ^~
produs_matrice.c:26:25: warning: unused variable ‘va’ [-Wunused-variable]
   26 |                 __m256i va = _mm256_set1_epi64x(val_a);
      |                         ^~
produs_matrice.c:26:25: warning: AVX vector return without AVX enabled changes the ABI [-Wpsabi]
produs_matrice.c:7:5: warning: ignoring return value of ‘freopen’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
    7 |     freopen("produs_matrice.in", "r", stdin);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
produs_matrice.c:8:5: warning: ignoring return value of ‘freopen’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
    8 |     freopen("produs_matrice.out", "w", stdout);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
produs_matrice.c:11:5: warning: ignoring return value of ‘scanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   11 |     scanf("%d %d", &m, &n);
      |     ^~~~~~~~~~~~~~~~~~~~~~
produs_matrice.c:12:53: warning: ignoring return value of ‘scanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   12 |     for (i = 0; i < m; i++) for (j = 0; j < n; j++) scanf("%lld", &A[i][j]);
      |                                                     ^~~~~~~~~~~~~~~~~~~~~~~
produs_matrice.c:13:5: warning: ignoring return value of ‘scanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   13 |     scanf("%d", &p);
      |     ^~~~~~~~~~~~~~~
produs_matrice.c:14:53: warning: ignoring return value of ‘scanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   14 |     for (i = 0; i < n; i++) for (j = 0; j < p; j++) scanf("%lld", &B[i][j]);
      |                                                     ^~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/lib/gcc/x86_64-linux-gnu/13/include/immintrin.h:43,
                 from produs_matrice.c:2:
/usr/lib/gcc/x86_64-linux-gnu/13/include/avxintrin.h:927:1: error: inlining failed in call to ‘always_inline’ ‘_mm256_loadu_si256’: target specific option mismatch
  927 | _mm256_loadu_si256 (__m256i_u const *__P)
      | ^~~~~~~~~~~~~~~~~~
produs_matrice.c:28:30: note: called from here
   28 |                 __m256i vc = _mm256_loadu_si256((__m256i*)&C[i][j]);
      |                              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/lib/gcc/x86_64-linux-gnu/13/include/avxintrin.h:927:1: error: inlining failed in call to ‘always_inline’ ‘_mm256_loadu_si256’: target specific option mismatch
  927 | _mm256_loadu_si256 (__m256i_u const *__P)
      | ^~~~~~~~~~~~~~~~~~
produs_matrice.c:27:30: note: called from here
   27 |                 __m256i vb = _mm256_loadu_si256((__m256i*)&B[k][j]);
      |                              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/lib/gcc/x86_64-linux-gnu/13/include/avxintrin.h:1358:1: error: inlining failed in call to ‘always_inline’ ‘_mm256_set1_epi64x’: target specific option mismatch
 1358 | _mm256_set1_epi64x (long long __A)
      | ^~~~~~~~~~~~~~~~~~
produs_matrice.c:26:30: note: called from here
   26 |                 __m256i va = _mm256_set1_epi64x(val_a);
      |                              ^~~~~~~~~~~~~~~~~~~~~~~~~

Cum funcționează evaluarea?