x.c

#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>

typedef struct {
	bool isRoot;
} selectedViewModel;

void log (const char *type) {
	write(0, type, strlen(type));
}

int viewModelStates[] = {
	0, 0, 0, 1, 1
};

int viewModelAmount = sizeof(viewModelStates) / sizeof(viewModelStates[0]);

int main() {
	char type[] = "mixed";

	selectedViewModel* selectedViewModels = malloc(viewModelAmount * sizeof *selectedViewModels);

	int i;

	for (i = 0; i < viewModelAmount; ++i) {
		selectedViewModels[i].isRoot = viewModelStates[i];
	}

	if (viewModelAmount < 2) {
		if (selectedViewModels[0].isRoot) {
			strncpy(type, "root", 5);
		} else {
			strncpy(type, "child", 6);
		}
	} else {
		bool isRoot = selectedViewModels[0].isRoot;

		char i;

		for (i = 1; i < viewModelAmount; ++i) {
			if (selectedViewModels[i].isRoot != isRoot) {
				break;
			}

			if (i == viewModelAmount - 1) {
				if (isRoot) {
					strncpy(type, "root", 5);
				} else {
					strncpy(type, "child", 6);
				}
			}
		}
	}

	log(type);

	free(selectedViewModels);

	return 0;
}