Compilare: user.cpp: In function ‘int main()’: user.cpp:44:23: warning: format ‘%lld’ expects argument of type ‘long long int*’, but argument 3 has type ‘int*’ [-Wformat=] fscanf(in, "%lld", &N); ^ user.cpp:47:33: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘long long int*’ [-Wformat=] fscanf(in, "%d", &arb[++t].val); ^ user.cpp:149:55: warning: format ‘%lld’ expects argument of type ‘long long int’, but argument 3 has type ‘int’ [-Wformat=] fprintf(out, "%lld %lld \n", r[i].first, r[i].second); ^ user.cpp:44:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%lld", &N); ^ user.cpp:47:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &arb[++t].val); ^