Compilare: user.c: In function ‘main’: user.c:75:25: warning: unused variable ‘l’ [-Wunused-variable] int n, m, q, k, i, j, l; ^ user.c:76:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d%d%d%d", &n, &m, &k, &q); ^ user.c:79:13: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &rmq[i][j][0]); ^ user.c:92:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &x); ^