Compilare: user.cpp: In function ‘int main()’: user.cpp:19:70: warning: format ‘%d’ expects argument of type ‘int*’, but argument 5 has type ‘long long int*’ [-Wformat=] scanf("%d%d%d%d%d%d%d",&x,&y,&z,&v[3][3],&v[2][3],&v[1][3],&n); ^ user.cpp:19:70: warning: format ‘%d’ expects argument of type ‘int*’, but argument 6 has type ‘long long int*’ [-Wformat=] user.cpp:19:70: warning: format ‘%d’ expects argument of type ‘int*’, but argument 7 has type ‘long long int*’ [-Wformat=] user.cpp:38:58: warning: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘long long int’ [-Wformat=] printf("%d\n",x*sol[1][1]+y*sol[2][1]+z*sol[3][1]); ^ user.cpp:12:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("iepuri.in", "r", stdin); ^ user.cpp:13:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("iepuri.out", "w", stdout); ^ user.cpp:14:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(scanf("%d",&t);t;t--) ^ user.cpp:19:71: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d%d%d%d",&x,&y,&z,&v[3][3],&v[2][3],&v[1][3],&n); ^