Eroare de compilare: user.c:1:19: error: fstream: No such file or directory user.c:3: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘namespace’ user.c:5: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘*’ token user.c:6: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘*’ token user.c: In function ‘main’: user.c:13: warning: implicit declaration of function ‘fscanf’ user.c:13: warning: incompatible implicit declaration of built-in function ‘fscanf’ user.c:13: error: ‘fin’ undeclared (first use in this function) user.c:13: error: (Each undeclared identifier is reported only once user.c:13: error: for each function it appears in.) user.c:15: error: ‘for’ loop initial declarations are only allowed in C99 mode user.c:15: note: use option -std=c99 or -std=gnu99 to compile your code user.c:17: warning: implicit declaration of function ‘fprintf’ user.c:17: warning: incompatible implicit declaration of built-in function ‘fprintf’ user.c:17: error: ‘fout’ undeclared (first use in this function) user.c:18: warning: implicit declaration of function ‘fclose’ user.c: In function ‘Area’: user.c:28: error: ‘for’ loop initial declarations are only allowed in C99 mode user.c:37: warning: implicit declaration of function ‘abs’