Compilare: main.c: In function 'main': main.c:20:50: warning: suggest parentheses around '-' inside '<<' [-Wparentheses] seg[i][j]=min(seg[i-1][j], seg[i-1][j+(1<<i-1)]); ~^~ main.c:13:3: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &n, &q); ^~~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:15:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", v+i); ^~~~~~~~~~~~~~~~~~~~~~ main.c:22:5: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &x, &y); ^~~~~~~~~~~~~~~~~~~~~~~~~~~