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Cod sursa(job #101321)
#include<stdio.h>
#include<string.h>
#include<stdlib.h>
char w[10000000], c, s[20];
int x, i, nr, ind, lg;
unsigned int sol, r, v[50005], pt[21], cnt, z;
int cmp(const void*a, const void*b){
unsigned int x = *(unsigned int *)a, y = *(unsigned int*)b;
if (x < y) return -1;
if (x > y) return 1;
return 0;
}
int caut(unsigned int val)
{
int i, step;
for (step = 1; step < ind; step <<= 1);
for (i = 0; step; step >>= 1)
if (i + step < ind && v[i + step] <= val)
i += step;
return i;
}
int main()
{
freopen("abc2.in", "rt", stdin);
freopen("abc2.out", "wt", stdout);
fgets(w, 10000005, stdin);
pt[0] = 1;
for (i=1; i<=20; i++)
pt[i] = 3*pt[i-1];
ind = -1;
while (!feof(stdin)){
fgets(s, 25, stdin);
nr = strlen(s) - 1;
r = 0;
for (i=0; i<nr; i++){
x = s[i]-'a';
r += x*pt[nr-i-1];
}
v[++ind] = r;
}
qsort(v, ind+1, sizeof(v[0]), cmp);
lg = strlen(w);
lg --;
cnt = 0;
for (i=0; i<nr; i++){
x = w[i]-'a';
cnt += pt[nr-i-1]*x;
}
z = caut(cnt);
if (cnt == v[z])
sol ++;
for (i=nr; i<lg; i++){
x = w[i]-'a';
cnt = (cnt - pt[nr-1]*(w[i-nr]-'a')) * 3 + x;
z = caut(cnt);
if (v[z] == cnt)
sol ++;
}
printf("%u\n", sol);
fclose(stdin);
fclose(stdout);
return 0;
}