Compilare: main.cpp: In function 'int main()': main.cpp:12:27: warning: unused variable 'k' [-Wunused-variable] int t, n, m, q, i, j, k, *a, *b, l1, r1, l2, r2,mij; ^ main.cpp:18:33: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (file_open, "%d", &t); ^ main.cpp:22:50: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf (file_open, "%d %d %d",&n, &m, &q); ^ main.cpp:26:43: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(file_open, "%d", &a[j]); ^ main.cpp:28:43: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(file_open, "%d", &b[j]); ^ main.cpp:37:66: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf( file_open, "%d %d %d %d", &l1, &r1, &l2, &r2); ^ main.cpp: In function 'int mijloc(int*, int*, int, int, int, int)': main.cpp:89:1: warning: control reaches end of non-void function [-Wreturn-type] } ^