Compilare: main.cpp: In function 'int main()': main.cpp:101:43: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen ("paralelipiped.in", "r", stdin); ^ main.cpp:102:45: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen ("paralelipiped.out", "w", stdout); ^ main.cpp:104:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf ("%d", &t); ^ main.cpp: In function 'void solve()': main.cpp:43:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf ("%d", &n); ^ main.cpp:50:75: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf ("%d%d%d%d%d%d", &x1[i], &yy[i], &z1[i], &x2[i], &y2[i], &z2[i]); ^ main.cpp: In function 'int get_poz(int, std::vector<int>&, int)': main.cpp:29:10: warning: 'sol' may be used uninitialized in this function [-Wmaybe-uninitialized] return sol; ^~~ main.cpp: In function 'int main()': main.cpp:68:15: warning: 'sol' may be used uninitialized in this function [-Wmaybe-uninitialized] x1[i] = 1 + get_poz (x1[i], vx, nx); ~~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:17:15: note: 'sol' was declared here int st, dr, sol; ^~~ main.cpp:70:15: warning: 'sol' may be used uninitialized in this function [-Wmaybe-uninitialized] yy[i] = 1 + get_poz (yy[i], vy, ny); ~~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:17:15: note: 'sol' was declared here int st, dr, sol; ^~~ main.cpp:72:15: warning: 'sol' may be used uninitialized in this function [-Wmaybe-uninitialized] z1[i] = 1 + get_poz (z1[i], vz, nz); ~~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:17:15: note: 'sol' was declared here int st, dr, sol; ^~~ main.cpp:73:15: warning: 'sol' may be used uninitialized in this function [-Wmaybe-uninitialized] z2[i] = 1 + get_poz (z2[i], vz, nz); ~~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:17:15: note: 'sol' was declared here int st, dr, sol; ^~~ main.cpp:71:15: warning: 'sol' may be used uninitialized in this function [-Wmaybe-uninitialized] y2[i] = 1 + get_poz (y2[i], vy, ny); ~~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:17:15: note: 'sol' was declared here