Compilare: user.cpp: In function ‘int main()’: user.cpp:70:22: warning: unused variable ‘poz’ [-Wunused-variable] int m, k, x, y, z, poz, j, i; ^ user.cpp:71:35: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d%d%d", &n, &m, &k); ^ user.cpp:76:37: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d%d%d", &x, &y, &z); ^