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back to board#include <iostream>
int main(void){
char nameOfKid[8];
int noOfLetters;
std::cin >> noOfLetters;
std::cin.ignore( 256, '\n') ;
int cur, temp, steps, newcur;
newcur = 0; cur = 0; steps= 0 ;
for (int i = 0 ; i < noOfLetters; ++i){
std::cin.getline(nameOfKid, 8);
temp = static_cast<int>(nameOfKid[0]);
switch(temp){
case 65:
case 80:
case 79:
case 82: newcur = 1;
break;
case 66:
case 77:
case 83: newcur = 2;
break;
case 68:
case 71:
case 74:
case 75:
case 84: newcur = 3;
break;
}
if ((newcur!=cur) && (i!=0)){
steps = steps + ((newcur>cur) ? (newcur-cur): (cur-newcur));
}
cur = newcur;
}
std::cout << steps;
return 0;
} You can store first letters with their's corresponding place like that:
int m[256];
m['A'] = m['P'] = m['O'] = m['R'] = 1;
m['B'] = m['M'] = m['S'] = 2;
m['D'] = m['G'] = m['J'] = m['K'] = m['T'] = m['W'] = 3; #include<bits/stdc++.h> using namespace std; int main(){ map<char,int>mp; mp['A'] = 1; mp['O'] = 1; mp['R'] = 1; mp['P'] = 1; mp['B'] = 2; mp['M'] = 2; mp['S'] = 2; mp['D'] = 3; mp['G'] = 3; mp['J'] = 3; mp['K'] = 3; mp['T'] = 3; mp['W'] = 3; int n,ans=0,pre=-1; string s; cin>>n; while(n--){ cin>>s; if(pre== -1){ pre = mp[s[0]]; }else{ ans += abs(mp[s[0]] - pre); pre = mp[s[0]]; } } cout<<ans<<endl; return 0; } i also got WA#3 doing in same way. |
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