Compilare: main.cpp: In function 'int main()': main.cpp:11:10: warning: variable 'c' set but not used [-Wunused-but-set-variable] char c; ^ main.cpp:15:29: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d\n", &n); ^ main.cpp:18:32: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d\n", &v[1]); ^ main.cpp:25:32: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf( fin, "%d\n", &v[i]); ^