Eroare de compilare: user.c:2:17: error: string: No such file or directory user.c:3:19: error: iostream: No such file or directory user.c:5:18: error: cstdlib: No such file or directory user.c:7: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘namespace’ user.c: In function ‘main’: user.c:39: error: ‘for’ loop initial declarations are only allowed in C99 mode user.c:39: note: use option -std=c99 or -std=gnu99 to compile your code user.c:43: error: redefinition of ‘i’ user.c:39: note: previous definition of ‘i’ was here user.c:43: error: ‘for’ loop initial declarations are only allowed in C99 mode user.c:47: error: redefinition of ‘i’ user.c:43: note: previous definition of ‘i’ was here user.c:47: error: ‘for’ loop initial declarations are only allowed in C99 mode user.c:52: error: ‘string’ undeclared (first use in this function) user.c:52: error: (Each undeclared identifier is reported only once user.c:52: error: for each function it appears in.) user.c:52: error: expected ‘;’ before ‘a’ user.c:53: error: redefinition of ‘i’ user.c:47: note: previous definition of ‘i’ was here user.c:53: error: ‘for’ loop initial declarations are only allowed in C99 mode user.c:55: warning: implicit declaration of function ‘itoa’ user.c:57: error: ‘a’ undeclared (first use in this function) user.c:60: error: ‘cout’ undeclared (first use in this function) user.c:35: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result user.c:36: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result user.c:37: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result user.c:41: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result