uva10115 Automatic Editing

#include <cstdio>#include <cstdlib>#include <cstring>#include <cmath>#include <iostream>#include <algorithm>#include <map>#include <vector>#include <set>using namespace std;#define N 300char Find[100000][N];char Replace[100000][N];int main(){    int n;    while(~scanf("%d", &n))    {        getchar();        if(!n)            break;        char tmp[N];        for(int i = 0; i < n; i++)        {            gets(tmp); strcpy(Find[i], tmp);            gets(tmp);            if(tmp[0]=='\n')                Replace[i][0]==-1;            else                strcpy(Replace[i], tmp);        }        char a[N];        gets(a); int len = strlen(a);        for(int i = 0; i < n; i++)        {            int j = 0;            while(j<len)            {                if(Find[i][0]==a[j])                {                    int len2 = strlen(Find[i]);                    int k;                    for(k = 0; k < len2; k++)                        if(Find[i][k]!=a[j+k])                            break;                    if(k==len2)                    {                        for(k = 0; k < j; k++)                            tmp[k] = a[k];                        if(Replace[i][0]!=-1)                            for(int g = 0; g < strlen(Replace[i]); g++)                                tmp[k++] = Replace[i][g];                        for(int g = j+len2; g < len; g++)                            tmp[k++] = a[g];                        tmp[k] = '\0';                        //printf("tmp = %s\n", tmp);                        strcpy(a, tmp);                        len = strlen(a);                        j = -1;                    }                }                j++;            }        }        printf("%s\n", a);    }    return 0;}