Compilare: main.c: In function 'querryTree': main.c:144:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ main.c: In function 'main': main.c:153:2: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(read, "%d%d", &N ,&M); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:158:3: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(read, "%d", &array[i]); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:168:3: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] fscanf(read, "%d%d%d", &type, &a, &b); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~