Compilare: main.c: In function 'main': main.c:89:28: warning: suggest parentheses around '-' inside '>>' [-Wparentheses] mid = lo + (hi - lo >> 1); ~~~^~~~ main.c:53:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &n, &m); ^~~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:55:9: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", v+i); ^~~~~~~~~~~~~~~~~~~~~~ main.c:86:9: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &x); ^~~~~~~~~~~~~~~~~~~~~