Compilare: user.cpp: In function ‘int main()’: user.cpp:10:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("vase.in","r",stdin); ^ user.cpp:11:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("vase.out","w",stdout); ^ user.cpp:15:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:19:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("\n%d %c",&a,&b); ^ user.cpp:26:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("\n%d",&c); ^ user.cpp:74:29: warning: ‘j2’ may be used uninitialized in this function [-Wmaybe-uninitialized] printf("\n%lld %c",i2,j2); ^ user.cpp:54:17: warning: ‘j1’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(j1=='D') i1=i1+(v[i]/2); ^ user.cpp:66:43: warning: ‘i2’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(j2=='S') i2=i2+(v[i]/2); ^ user.cpp:62:17: warning: ‘i1’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(i1=='S') i1=i1+(v[i]/2); ^