Compilare: main.cpp: In function 'int main()': main.cpp:28:24: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses] if((i>>j)&1==1){ ~^~~ main.cpp:11:30: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d %d",&n,&m); ^ main.cpp:13:42: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d%d",&v[i],&a[i][0]); ^ main.cpp:15:38: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&a[i][j]); ^ main.cpp:19:34: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%f",&pret[i]); ^