【比赛】百度之星2017 复赛

#include<cstdio>
#include<cstring>
#include<cctype>
#include<cmath>
#include<algorithm>
#define ll long long
using namespace std;
int read()
{
    char c;int s=0,t=1;
    while(!isdigit(c=getchar()))if(c==‘-‘)t=-1;
    do{s=s*10+c-‘0‘;}while(isdigit(c=getchar()));
    return s*t;
}
/*------------------------------------------------------------*/
const int inf=0x3f3f3f3f,maxn=101000,MOD=1000000007;

int n;
char s[maxn],ans[maxn],nows[maxn];
int main()
{
    int T;
    scanf("%d",&T);
    while(T--){
        scanf("%s",s+1);
        int n=strlen(s+1);
        int nowstep=0,len=0,tot=0;
        for(int i=1;i<=n;i++)if(isdigit(s[i])){
            if(nowstep==1){nows[++len]=s[i];}
            else 
                if(nowstep==2){
                    for(int j=1;j<=s[i]-‘0‘;j++){
                        for(int k=1;k<=len;k++){
                            ans[++tot]=nows[k];
                        }
                    }
                    len=0;nowstep=0;
                }
                else
                    if(nowstep==0)ans[++tot]=s[i];
        }
        else{
            if(nowstep==0&&s[i]==‘(‘)nowstep=1;else
            if(nowstep==1&&s[i]==‘)‘)nowstep=2;
        }
        long long ansnum=0;
        for(int i=1;i<=tot;i++)ansnum=(ansnum*10+ans[i]-‘0‘)%MOD;
        printf("%lld\n",ansnum);
        
    }
    return 0;
}