Created
February 5, 2016 13:09
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| char op[]={'+','-','*','/'}; | |
| bool eval(int a[],int target,int n,int pos,int prev) | |
| { | |
| if(pos == n) { | |
| if(prev == target) { | |
| return true; | |
| } | |
| return false; | |
| } | |
| for(int i=0;i<;4;i++) { | |
| int res = 0; | |
| char ch = op[i]; | |
| if(ch == '+') { | |
| res = prev + a[pos]; | |
| } else if(ch == '-') { | |
| res = prev - a[pos]; | |
| } else if(ch == '*') { | |
| res = prev * a[pos]; | |
| } else { | |
| res = prev / a[pos]; | |
| } | |
| if( eval(a,target,n,pos+1,res ) ) | |
| return true; | |
| } | |
| return false; | |
| } |
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