Compilare: user.cpp: In function ‘int main()’: user.cpp:13:32: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘char*’ [-Wformat=] fscanf(fi,"%d %d " ,&tip,&n); ^ user.cpp:50:10: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(cnt==2) ^ user.cpp:69:17: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(v[i]<0&&v[i]%2!=0) ^ user.cpp:79:18: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(v[i]<0&&v[i]%2!=0) ^ user.cpp:86:18: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if(v[i]<0&&v[i]%2==0) ^ user.cpp:13:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d %d " ,&tip,&n); ^ user.cpp:17:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d " ,&v[i]); ^ user.cpp:55:57: warning: ‘sol’ may be used uninitialized in this function [-Wmaybe-uninitialized] sol+=1LL*s.count(v[i+1])*s.count(sum-v[i+1]); ^