Compilare: user.cpp: In member function ‘void Mat::print()’: user.cpp:57:38: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘long long int’ [-Wformat=] printf("%d ", c[i][j]); ^ user.cpp: In function ‘Mat calc2(int)’: user.cpp:72:9: warning: variable ‘k’ set but not used [-Wunused-but-set-variable] int k = 0; ^ user.cpp: In function ‘int main()’: user.cpp:91:48: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘long long int’ [-Wformat=] printf("%d\n", calc2(n - k + 1).c[0][0]); ^ user.cpp:84:9: warning: unused variable ‘i’ [-Wunused-variable] int i, j; ^ user.cpp:84:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j; ^ user.cpp:85:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("2sah.in", "r", stdin); ^ user.cpp:86:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("2sah.out", "w", stdout); ^ user.cpp:87:34: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d", &p, &n, &k); ^