Rezumat problemă

sum

#1

Să se scrie un program care citeşte din fişier două numere întregi şi determină suma lor.

Fișiere Candale Silviu (silviu) ușoară

Clasa 9 Elemente de baza ale limbajului Operatori și expresii

Rezolvă

Detalii

Problema	sum	Operații I/O	sum.in/sum.out
Limita timp	1 secunde	Limita memorie	Total: 64 MB / Stivă 8 MB
Id soluție	#64948286	Utilizator	Dedu Răzvan - alt account (twilightsparklezz)
Fișier	sum.c	Dimensiune	198 B
Data încărcării	21 Iunie 2026, 02:33	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

sum.c: In function ‘main’:
sum.c:4:17: warning: passing argument 1 of ‘freopen’ from incompatible pointer type [-Wincompatible-pointer-types]
    4 |         freopen(stdin, "sum.in", "r");
      |                 ^~~~~
      |                 |
      |                 FILE *
In file included from sum.c:1:
/usr/include/stdio.h:271:46: note: expected ‘const char * restrict’ but argument is of type ‘FILE *’
  271 | extern FILE *freopen (const char *__restrict __filename,
      |                       ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~
sum.c:4:34: warning: passing argument 3 of ‘freopen’ from incompatible pointer type [-Wincompatible-pointer-types]
    4 |         freopen(stdin, "sum.in", "r");
      |                                  ^~~
      |                                  |
      |                                  char *
/usr/include/stdio.h:273:40: note: expected ‘FILE * restrict’ but argument is of type ‘char *’
  273 |                       FILE *__restrict __stream) __wur __nonnull ((3));
      |                       ~~~~~~~~~~~~~~~~~^~~~~~~~
sum.c:5:13: warning: passing argument 1 of ‘freopen’ from incompatible pointer type [-Wincompatible-pointer-types]
    5 |     freopen(stdout, "sum.out" "w");
      |             ^~~~~~
      |             |
      |             FILE *
/usr/include/stdio.h:271:46: note: expected ‘const char * restrict’ but argument is of type ‘FILE *’
  271 | extern FILE *freopen (const char *__restrict __filename,
      |                       ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~
sum.c:5:5: error: too few arguments to function ‘freopen’
    5 |     freopen(stdout, "sum.out" "w");
      |     ^~~~~~~
/usr/include/stdio.h:271:14: note: declared here
  271 | extern FILE *freopen (const char *__restrict __filename,
      |              ^~~~~~~
sum.c:9:5: warning: implicit declaration of function ‘print’; did you mean ‘printf’? [-Wimplicit-function-declaration]
    9 |     print("%d\n", a+b);
      |     ^~~~~
      |     printf
sum.c:4:9: warning: ignoring return value of ‘freopen’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
    4 |         freopen(stdin, "sum.in", "r");
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
sum.c:8:5: warning: ignoring return value of ‘scanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
    8 |     scanf("%d%d", &a, &b);
      |     ^~~~~~~~~~~~~~~~~~~~~

Cum funcționează evaluarea?