Compilare: main.cpp: In function 'int main()': main.cpp:85:18: warning: overflow in implicit constant conversion [-Woverflow] valmin = LONG_MAX; ^~~~~~~~ main.cpp:76:24: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d", &n); ^ main.cpp:77:51: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] for(i = 1; i <= n; i++) fscanf(f, "%d", &v[i]); ^ main.cpp: In function 'coord det_coord(int)': main.cpp:32:18: warning: 'z' may be used uninitialized in this function [-Wmaybe-uninitialized] for(i = 1; i <= m; i++) s += i * i; ~~^~~~ main.cpp:38:18: note: 'z' was declared here int i, x, y, z; ^