Compilare: user.cpp: In function ‘int main()’: user.cpp:11:26: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (in, "%d", &n); ^ user.cpp:14:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf (in, "%d", &v[i]); ^ user.cpp:79:19: warning: ‘d’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (f + d > profit3 + profit4) ^ user.cpp:79:19: warning: ‘f’ may be used uninitialized in this function [-Wmaybe-uninitialized] user.cpp:98:70: warning: ‘sol3’ may be used uninitialized in this function [-Wmaybe-uninitialized] fprintf (out, "%d\n%d %d %d", maxim, sol1 + 1, sol2 + 1, sol3 + 1); ^ user.cpp:98:70: warning: ‘sol2’ may be used uninitialized in this function [-Wmaybe-uninitialized] user.cpp:98:70: warning: ‘sol1’ may be used uninitialized in this function [-Wmaybe-uninitialized]