#include <iostream> #include <string> #include <algorithm> #include <cstdlib> using namespace std; int main() { string s, input, tempstr; int i, j, x, n, r; long long int sum = 0, tempsum; cin >> input; for(i = 0; i < input.length()/2+1; i++) { s = ""; for(j = input.length(); j > 2*i; j--) s+='1'; for(j = 0; j < i; j++) s+='2'; do { n = 0; tempsum = 1; for(x = 0; x < s.length(); x++) { tempstr = input[x+n]; if(s[x] == '1') tempsum *= int(input[x+n])-47; if(s[x] == '2') { tempstr += input[x+n+1]; if(tempstr <= "18") { r = (input[x+n]-47) * (input[x+n+1]-47); tempsum *= stoi(tempstr)+1 - r; n++; } else { tempsum = 0; break; } } } sum += tempsum; }while(next_permutation(s.begin(), s.end())); } cout << sum; return 0; }
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 | #include <iostream> #include <string> #include <algorithm> #include <cstdlib> using namespace std; int main() { string s, input, tempstr; int i, j, x, n, r; long long int sum = 0, tempsum; cin >> input; for(i = 0; i < input.length()/2+1; i++) { s = ""; for(j = input.length(); j > 2*i; j--) s+='1'; for(j = 0; j < i; j++) s+='2'; do { n = 0; tempsum = 1; for(x = 0; x < s.length(); x++) { tempstr = input[x+n]; if(s[x] == '1') tempsum *= int(input[x+n])-47; if(s[x] == '2') { tempstr += input[x+n+1]; if(tempstr <= "18") { r = (input[x+n]-47) * (input[x+n+1]-47); tempsum *= stoi(tempstr)+1 - r; n++; } else { tempsum = 0; break; } } } sum += tempsum; }while(next_permutation(s.begin(), s.end())); } cout << sum; return 0; } |