#include "stdio.h"
#include "string.h"
#include "stdlib.h"
#include "math.h"
char *vgraph[] = {" ","▁","▂","▃","▄","▅","▆","▇","█"};
char *hgraph[] = {"█","▉","▊","▋","▌","▍","▎","▏"," "};
int main(int argc,char**argv){
	int h = 1;
	int w = 80;
	int color = 0,ori = 0,zebra=0,label=0;
	if(argc >= 2&&argv[1][0]=='-'){
		if(strchr(argv[1],'c'))color = 1;
		if(strchr(argv[1],'z'))zebra = 1;
		if(strchr(argv[1],'h'))ori = 1;
		if(strchr(argv[1],'l'))label = 1;
		argv++;argc--;
	}
	if(ori)h=10;
	if(argc >= 2)h = strtol(argv[1],0,0);
	if(argc >= 3)w = strtol(argv[2],0,0);
	float *x=malloc(sizeof(float)*w);
	int i,c,j;
	float M = -HUGE_VALF;
	float m = HUGE_VALF;
	for(i=0;i<w;i++){
		c=scanf(" %f",x+i);
		if(c<1)break;
		if(x[i]>M)M=x[i];
		if(x[i]<m)m=x[i];
	}
	if(argc >= 4)sscanf(argv[3],"%f",&m);
	if(argc >= 5)sscanf(argv[4],"%f",&M);
	w = i;
	float l = (M-m)/h;
	if(ori == 0){//vertical, default
	for(j=h-1;j>=0;j--){
		if(color)fputs("\e[44m",stdout);
		for(i=0;i<w;i++){
			float r = x[i]-m-l*j;
			if(zebra)fputs((i%2)?"\e[31m":"\e[32m",stdout);
			if(r>l){
				fputs(vgraph[8],stdout);
			}else if(r>0){
				fputs(vgraph[(int)(r/l*8+0.5)],stdout);
			}else{
				fputs(" ",stdout);
			}
		}
		if(color||zebra)fputs("\e[0m",stdout);
		if(label&&j==h-1)printf(" %f",M);
		if(label&&j==0)printf(" %f",m);
		putchar(10);
	}
	}else{
	for(i=0;i<w;i++){
		if(zebra)fputs((i%2)?"\e[31m":"\e[32m",stdout);
		if(color)fputs("\e[44m",stdout);
		for(j=0;j<h;j++){
			float r = x[i]-m-l*j;
			if(r>l){
				fputs(hgraph[0],stdout);
			}else if(r>0){
				fputs(hgraph[8-(int)(r/l*8+0.5)],stdout);
			}else{
				fputs(hgraph[8],stdout);
			}
		}
		if(color||zebra)fputs("\e[0m",stdout);
		putchar(10);
	}
	int n;
	if(label){
		printf("%f%n",m,&n);
		while(n++<h-1)putchar(' ');
		printf("▕ %f",M);
	}
	}
}