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Passed all test cases on udebug but still WA.
Please help.
#include <iostream>
#include <vector>
#include <algorithm>
// #include <utility>
#include <string>
// #include <stack>
using namespace std;
vector<vector<int> > a(51,vector<int>(51));
int lasti=0,lastj=0,lastdir=0;
int y,x;
string ins;
char ...