Compilare: user.cpp: In function ‘int main()’: user.cpp:118:31: warning: format ‘%lld’ expects argument of type ‘long long int*’, but argument 3 has type ‘std::map<long long int, int>::mapped_type* {aka int*}’ [-Wformat=] fscanf(f,"%lld ",&m[i]); ^ user.cpp:116:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&n); ^ user.cpp:118:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%lld ",&m[i]); ^ user.cpp:123:40: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%lld ",&v[i][j]); ^