题意:
一个人打电话,按照1 11 111 1111 2 22 222 2222 3 33 333。。。的顺序打电话一直打到9999.
给一个停止的数字,问到这个数字为止,总共按了多少次按键。(包括给的数字)
题解:
水题,暴力即可
code:
#include<bits/stdc++.h>
//#pragma GCC optimize(2)
#define rep(i,a,n) for (int i=a;i<=n;i++)//i为循环变量,a为初始值,n为界限值,递增
#define per(i,a,n) for (int i=a;i>=n;i--)//i为循环变量, a为初始值,n为界限值,递减。using namespace std;
#define IOS ios_base::sync_with_stdio(0); cin.tie(0);cout.tie(0)
#define ll long long
#define ull unsigned long long
#define ld long double
#define PII pair<int,int>
#define debug(a) cout <<#a << "=" << a << endl;
const int INF = 0x3f3f3f3f;
const ll LINF = 1ll<<60;
const int mod=1e9+7;
inline int read(){
int x=0,f=1;char ch=getchar();while(ch<'0'||ch>'9'){
if(ch=='-')f=-1;ch=getchar();}while(ch>='0'&&ch<='9'){
x=(x<<1)+(x<<3)+(ch^48);ch=getchar();}return x*f;}int main(){
int t;cin>>t;while(t--){
string x;cin>>x;string s;int ans=0;for(int j=1;j<=9;j++){
for(int i=1;i<=4;i++){
s+=j+'0';ans+=s.size();if(s==x)goto here;}s="";}here:cout<<ans<<endl;}return 0;
}