Compilare: user.cpp: In function ‘int main()’: user.cpp:119:52: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘long long int’ [-Wformat=] if(K==1){fprintf(g,"%d\n",(1LL*(N)*(N+1)/2));continue;} ^ user.cpp: In function ‘int i32()’: user.cpp:101:34: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buffer,1,LEN,f); ^ user.cpp:107:34: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buffer,1,LEN,f); ^