Compilare: user.cpp: In function ‘int SOLVE_2(int, int)’: user.cpp:77:26: warning: variable ‘g’ set but not used [-Wunused-but-set-variable] int i, nr, ans, h=0, g, mn, mx; ^ user.cpp: In function ‘int main()’: user.cpp:109:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("qvect.in", "r", stdin); ^ user.cpp:110:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("qvect.out", "w", stdout); ^ user.cpp:111:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &N, &Q); ^ user.cpp:114:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &v[i][0]); ^ user.cpp:116:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &v[i][j]); ^ user.cpp:120:38: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d", &t, &i, &j); ^ user.cpp: In function ‘int SOLVE_1(int, int)’: user.cpp:51:35: warning: ‘y’ may be used uninitialized in this function [-Wmaybe-uninitialized] dif=min(dif, MODUL(v[X][i]-y)); ^ user.cpp:53:35: warning: ‘x’ may be used uninitialized in this function [-Wmaybe-uninitialized] dif=min(dif, MODUL(x-v[Y][j])); ^ user.cpp: In function ‘int SOLVE_2(int, int)’: user.cpp:104:12: warning: ‘ans’ may be used uninitialized in this function [-Wmaybe-uninitialized] return ans; ^