Compilare: user.cpp: In function ‘int cautbincol(int, int, int, int)’: user.cpp:17:12: warning: statement has no effect [-Wunused-value] for(pas; pas>0; pas=pas>>1) ^ user.cpp: In function ‘int cautbinlin(int, int, int, int)’: user.cpp:31:12: warning: statement has no effect [-Wunused-value] for(pas; pas>0; pas=pas>>1) ^ user.cpp: In function ‘int main()’: user.cpp:44:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("zone.in","r",stdin); ^ user.cpp:45:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("zone.out","w",stdout); ^ user.cpp:46:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:47:46: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(int i=1; i<=9; ++i) scanf("%d",&b[i]); ^ user.cpp:50:53: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(int j=1; j<=n; ++j) scanf("%d",&m[i][j]); ^