Compilare: main.cpp: In function 'int main()': main.cpp:68:94: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d\n%d %d %d\n%d %d %d %d\n", &query, &n, &m, &specialCells, &L, &C, &k, &s) ; ^ main.cpp:71:39: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d %d\n", &x, &y) ; ^ main.cpp:79:35: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d ", &x) ; ^