【十二题解】 | #配置文件恢复#

#include<stdio.h>

int zixulie(chara, charb, int alenth, int blenth){

int loc = 0;
int i;
if(a[0] != b[0])return 0;
for(i=1; i<alenth; i++){
    int sign =0;
    for(int j=1; j<blenth; j++){
        if(a[i]==b[j] && j>loc){
            loc = j;
            sign = 1;
            break;
        }
        
    }
    if(!sign)break;
}
if(i==alenth)return 1;
return 0;

}

int order(chara, charb, charcmd1, charcmd2, int alenth, int blenth){

int ans = 0;
if(zixulie(a, cmd1[1], alenth, 5) && zixulie(b, cmd2[1], blenth, 5))ans+=10;
if(zixulie(a, cmd1[2], alenth, 5) && zixulie(b, cmd2[2], blenth, 3))ans+=100;
if(zixulie(a, cmd1[3], alenth, 5) && zixulie(b, cmd2[3], blenth, 6))ans+=1000;
if(zixulie(a, cmd1[4], alenth, 6) && zixulie(b, cmd2[4], blenth, 9))ans+=10000;
if(zixulie(a, cmd1[5], alenth, 9) && zixulie(b, cmd2[5], blenth, 5))ans+=100000;
return ans;

}

int order1(char*a, char**cmd1, int alenth){

int ans = 0;
if(zixulie(a, cmd1[0], alenth, 5))ans+=1;
return ans;

}

int main(){

char *cmd1[6] = {"reset", "reset", "board", "board", "reboot", "backplane"};
char *cmd2[6] = {"no use", "board", "add", "delete", "backplane", "abort"};
 char in[28] = {0};
    while(scanf("%[^\n]\n", in) != EOF){
        char a1[20]={0}, a2[20]={0};
        int i;
        int sign = 0, loc2=0, loc1=0;
        for(i=0; in[i] != '\0'; i++){
            if(in[i]==' '){
                sign =1;
                break;
            }
            a1[i]=in[i];
        }
        loc1 = i;
        if(sign){
            for(i=i+1; in[i] != '\0'; i++){
            a2[loc2++]=in[i];
            }
        }
        if(sign){
            int a = order(a1, a2, cmd1, cmd2, loc1, loc2);
            if(a==10){
                printf("board fault\n");
            }
            else if(a==100){
                printf("where to add\n");
            }
            else if(a==1000){
                printf("no board at all\n");
            }
            else if(a==10000){
                printf("impossible\n");
            }
            else if(a==100000){
                printf("install first\n");
            }
            else{
                printf("unknown command\n");
            }
        }
        else{
            if(order1(a1, cmd1, loc1)){
                printf("reset what\n");
            }
            else{
                printf("unknown command\n");
            }
        }
    }

}