Compilare: user.cpp: In function ‘int solve(int, int)’: user.cpp:21:4: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (st!=con1) ^ user.cpp:26:4: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (dr!=con2) ^ user.cpp:7:5: warning: unused variable ‘s’ [-Wunused-variable] int s=1,d=(int)log2((double)dr)+1; ^ user.cpp:31:8: warning: no return statement in function returning non-void [-Wreturn-type] rasp++;} ^ user.cpp: In function ‘int main()’: user.cpp:33:31: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("hansha.in","r",stdin); ^ user.cpp:34:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("hansha.out","w",stdout); ^ user.cpp:36:15: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&t); ^ user.cpp:38:15: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&k); ^ user.cpp:40:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&v[i]); ^ user.cpp:41:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&st,&dr); ^