Nu aveti permisiuni pentru a descarca fisierul grader_test8.ok
Cod sursa(job #2087105)
| Utilizator | Data | 12 decembrie 2017 22:08:23 | |
|---|---|---|---|
| Problema | Prefix | Scor | 100 |
| Compilator | cpp | Status | done |
| Runda | Arhiva de probleme | Marime | 0.94 kb |
#include <cstdio>
#include <cstring>
using namespace std;
char s[1000005];
int n, pre[1000005];
void buildPre() {
int len = 0, i = 1;
while(i < n) {
if(s[len] == s[i]) {
++ len;
pre[i] = len;
++ i;
} else {
if(len == 0) {
pre[i] = 0;
++ i;
} else {
len = pre[len - 1];
}
}
}
}
int main() {
freopen("prefix.in", "r", stdin);
freopen("prefix.out" , "w", stdout);
int t;
scanf("%d\n", &t);
while(t --) {
gets(s);
n = strlen(s);
buildPre();
int rasp = 0;
for(int p = n - 1; p >= 1; -- p) {
if(pre[p] > 0 && (p + 1) % (p + 1 - pre[p]) == 0) {
rasp = p + 1;
break;
}
}
printf("%d\n", rasp);
}
return 0;
}