Compilare: user.cpp: In function ‘int main()’: user.cpp:80:11: warning: operation on ‘Sol1’ may be undefined [-Wsequence-point] Sol1=Sol1=-C/B; ~~~~^~~~~~~~~~ user.cpp:35:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&N,&K); ^ user.cpp:37:45: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(i=1; i<=N; ++i) fscanf(fin,"%d",&V[i]); ^ user.cpp:42:25: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fgets(Sir,105,fin); ^