Compilare: user.cpp: In function ‘int main()’: user.cpp:32:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &m); ^ user.cpp:40:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &v[i][j]); ^ user.cpp:58:44: warning: ‘maxj’ may be used uninitialized in this function [-Wmaybe-uninitialized] cout << maxv << ' ' << maxi << ' ' << maxj; ^ user.cpp:58:25: warning: ‘maxi’ may be used uninitialized in this function [-Wmaybe-uninitialized] cout << maxv << ' ' << maxi << ' ' << maxj; ^