HDU 4278 Faulty Odometer [類比]

把亂了以後的數位映射到真實的數位，然後就8進位轉10進位。

代碼：

#include<cstdio>#include<cstring>#include<iostream>#include<cmath>#include<string>#include<vector>#include<map>#include<algorithm>using namespace std;inline int Rint() { int x; scanf("%d", &x); return x; }inline int max(int x, int y) { return (x>y)? x: y; }inline int min(int x, int y) { return (x<y)? x: y; }#define FOR(i, a, b) for(int i=(a); i<=(b); i++)#define FORD(i,a,b) for(int i=(a);i>=(b);i--)#define REP(x) for(int i=0; i<(x); i++)typedef long long int64;#define INF (1<<30)const double eps = 1e-8;#define bug(s) cout<<#s<<"="<<s<<" "#define MAXN 20char a[MAXN];int bak;int b[] = { 0, 1, 2, 3, 3, 4, 5, 6, 7, 7, 8 };int main(){while(scanf("%s", a)!=-1){if(a[0] == '0') break;bak = 0;for(int i=0; a[i]; i++){bak = bak*10+a[i]-'0';a[i] = b[a[i]-'0']+'0';}int ans;sscanf(a, "%o", &ans);printf("%d: %d\n", bak, ans);}}//%o