Compilare: main.cpp: In function 'int main()': main.cpp:41:23: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d",&n); ^ main.cpp:44:35: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d",&rmq[i][0]); ^ main.cpp:48:29: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d",&ris); ^ main.cpp: In function 'int log(int)': main.cpp:25:12: warning: 'ras' may be used uninitialized in this function [-Wmaybe-uninitialized] return ras; ^~~ main.cpp: In function 'int maxim(int, int)': main.cpp:37:56: warning: 'ras' may be used uninitialized in this function [-Wmaybe-uninitialized] return max(rmq[a][log(b-a+1)],rmq[b+1-po[log(b-a+1)]][log(b-a+1)]); ~~~~~~~~~~~~~^ main.cpp: In function 'int main()': main.cpp:51:5: warning: 'ras' may be used uninitialized in this function [-Wmaybe-uninitialized] for(j=1;j<=log(n);j++) ^~~