please tell me why they show me wrong answer.
i used this technique. if a = 1, go right. if a = -1, go left, if b = 1, go up, if b = -1, go down.
used ara[64][64] to store 0 if it is not travelled and store 1 if it is travelled.
include<stdio.h>
include<string.h>
int main(){
int a,b,i,j,m,n,t,len,ara[64][64],p,q,r;
char s[130];
scanf("%d",&t);
for(i = 0; i < t; i++){
scanf("%d %d\n", &m, &n);
r = 0;
gets(s);
for(p = 0; p < 64; p++){
for(q = 0; q < 64; q++){
ara[p][q] = 0;
}
}
ara[m][n] = 1;
len = strlen(s);
a = 0, b = 1;
for(j = 0; j < len; j++){
if(s[j] == 'F'){
if(b == 1){
n++;
}
else if(b == -1){
n--;
}
else if(a == 1){
m++;
}
else if(a == -1){
m--;
}
if(ara[m][n] == 1){
r++;
}
else{
ara[m][n] = 1;
}
}
else if(s[j] == 'R'){
if(b == 1){
b = 0;
a = 1;
}
else if(b == -1){
b = 0;
a = -1;
}
else if(a == 1){
a = 0;
b = -1;
}
else if(a == -1){
a = 0;
b = 1;
}
}
else{
if(a == 1){
a = 0;
b = 1;
}
else if(a == -1){
a = 0;
b = -1;
}
else if(b == 1){
b = 0;
a = -1;
}
else if(b == -1){
b = 0;
a = 1;
}
}
}
printf("Case #%d: %d %d %d\n",i + 1,m,n,r);
}
return 0;}
