Compilare: main.cpp: In function 'int get1(int, int)': main.cpp:32:22: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses] return ((hsh1[r] - (1LL * hsh1[l - 1] * pw1[r - l + 1]) & (MOD1 - 1)) + MOD1) & (MOD1 - 1); ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int get2(int, int)': main.cpp:37:22: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses] return ((hsh2[r] - (1LL * hsh2[l - 1] * pw2[r - l + 1]) & (MOD2 - 1)) + MOD2) % (MOD2 - 1); ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:52:24: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d" ,&q); ^ main.cpp:55:30: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%s " ,str); ^