Compilare: user.cpp: In function ‘void make(int)’: user.cpp:70:18: warning: unused variable ‘ind1’ [-Wunused-variable] int ind = 1, ind1 = 2; ^ user.cpp: In function ‘int main()’: user.cpp:94:32: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &N, &Q); ^ user.cpp:98:40: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &a[i][j]); ^ user.cpp:105:64: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d%d%d", &x1[i], &Y1[i], &x2[i], &y2[i]); ^