oj.uz

Submission #22821

# Submission time Handle Problem Language Result Execution time Memory
22821 2017-04-30T07:42:15 Z ↓우리보다잘하는팀(#947, ainta, gs12117, gs13068) New Ocurrences (KRIII5_NO) C++
2 / 7
 1000 ms 5552 KB 
#include<cstdio>
#include<algorithm>
using namespace std;
int n, C[101000], ord1[101000], ord2[101000], SA[101000], Rank[101000], LCP[101000];
char p[101000];
struct AA{
    int a, b;
}w[101000];
void Suffix_Array(){
    int i, M = max(n, 200), LL = 1;
    for(i=0;i<n;i++){
        w[i].a = p[i],w[i].b = p[i+1];
    }
    while(1){
        for(i=0;i<=M;i++)C[i]=0;
        for(i=0;i<n;i++)C[w[i].b]++;
        for(i=1;i<=M;i++)C[i]+=C[i-1];
        for(i=n-1;i>=0;i--)ord1[--C[w[i].b]] = i;
        for(i=0;i<=M;i++)C[i]=0;
        for(i=0;i<n;i++)C[w[i].a]++;
        for(i=1;i<=M;i++)C[i]+=C[i-1];
        for(i=n-1;i>=0;i--)ord2[--C[w[ord1[i]].a]] = ord1[i];
        int cnt = 0;
        for(i=0;i<n;i++){
            if(i==0||w[ord2[i]].a!=w[ord2[i-1]].a||w[ord2[i]].b!=w[ord2[i-1]].b)cnt++;
            Rank[ord2[i]] = cnt;
        }
        if(cnt == n)break;
        LL<<=1;
        for(i=0;i<n;i++){
            w[i].a = Rank[i];
            if(i+LL >= n)w[i].b = 0;
            else w[i].b = Rank[i+LL];
        }
    }
    for(i=0;i<n;i++)SA[Rank[i]] = i;
    int t = 0, x, y;
    for(i=0;i<n;i++){
        x = Rank[i];
        if(t)t--;
        if(x==n)continue;
        y = SA[x+1];
        while(p[i+t]==p[y+t])t++;
        LCP[x] = t;
    }
}
int top, R[101000];
struct TP{
    int l, b;
}st[101000];
int main(){
    int i, j;
    scanf("%s",p);
    for(i=0;p[i];i++);
    n = i;
    for(i=0;i<n/2;i++){
        swap(p[i],p[n-i-1]);
    }
    Suffix_Array();
    for(i=1;i<=n;i++){
        int b = -1;
        while(top && st[top].l >= LCP[i-1]){
            b = st[top].b;
            top--;
        }
        if(b!=-1){
            st[++top] = {LCP[i-1],b};
        }
        int pv = i-1;
        int r = 0, c = 0;
        for(j=top;st[j].l;j--){
            while(pv>=1 && st[j].b <= pv){
                if(SA[pv] > SA[i])c++;
                pv--;
            }
            r += (st[j].l-st[j-1].l) * c;
        }
        R[n-SA[i]] += r*2;
        st[++top] = {n - SA[i], i};
    }
    top = 0;
    for(i=n;i>=1;i--){
        int b = -1;
        while(top && st[top].l >= LCP[i]){
            b = st[top].b;
            top--;
        }
        if(b!=-1){
            st[++top] = {LCP[i],b};
        }
        int pv = i+1;
        int r = 0, c = 0;
        for(j=top;st[j].l;j--){
            while(pv<=n && st[j].b >= pv){
                if(SA[pv] > SA[i])c++;
                pv++;
            }
            r += (st[j].l-st[j-1].l) * c;
        }
        R[n-SA[i]] += r*2;
        st[++top] = {n - SA[i], i};
    }
    long long sum = 0;
    for(i=1;i<=n;i++){
        sum = sum + i + R[i];
        printf("%lld\n",sum);
    }
}

Compilation message

NO.cpp: In function 'int main()':
NO.cpp:67:36: warning: extended initializer lists only available with -std=c++11 or -std=gnu++11
             st[++top] = {LCP[i-1],b};
                                    ^
NO.cpp:67:23: warning: extended initializer lists only available with -std=c++11 or -std=gnu++11
             st[++top] = {LCP[i-1],b};
                       ^
NO.cpp:79:34: warning: extended initializer lists only available with -std=c++11 or -std=gnu++11
         st[++top] = {n - SA[i], i};
                                  ^
NO.cpp:79:19: warning: extended initializer lists only available with -std=c++11 or -std=gnu++11
         st[++top] = {n - SA[i], i};
                   ^
NO.cpp:89:34: warning: extended initializer lists only available with -std=c++11 or -std=gnu++11
             st[++top] = {LCP[i],b};
                                  ^
NO.cpp:89:23: warning: extended initializer lists only available with -std=c++11 or -std=gnu++11
             st[++top] = {LCP[i],b};
                       ^
NO.cpp:101:34: warning: extended initializer lists only available with -std=c++11 or -std=gnu++11
         st[++top] = {n - SA[i], i};
                                  ^
NO.cpp:101:19: warning: extended initializer lists only available with -std=c++11 or -std=gnu++11
         st[++top] = {n - SA[i], i};
                   ^
NO.cpp:53:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%s",p);
                  ^

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 5552 KB Output is correct
2 Correct 0 ms 5552 KB Output is correct
3 Correct 0 ms 5552 KB Output is correct
4 Correct 0 ms 5552 KB Output is correct
5 Correct 13 ms 5552 KB Output is correct
6 Correct 9 ms 5552 KB Output is correct
7 Correct 23 ms 5552 KB Output is correct
8 Correct 0 ms 5552 KB Output is correct
9 Correct 0 ms 5552 KB Output is correct
10 Correct 9 ms 5552 KB Output is correct
11 Correct 9 ms 5552 KB Output is correct
12 Correct 49 ms 5552 KB Output is correct
13 Correct 49 ms 5552 KB Output is correct
14 Correct 43 ms 5552 KB Output is correct
15 Correct 43 ms 5552 KB Output is correct
16 Correct 39 ms 5552 KB Output is correct
17 Correct 33 ms 5552 KB Output is correct
18 Correct 43 ms 5552 KB Output is correct
19 Correct 23 ms 5552 KB Output is correct
20 Correct 9 ms 5552 KB Output is correct
21 Correct 16 ms 5552 KB Output is correct
22 Correct 23 ms 5552 KB Output is correct
23 Correct 9 ms 5552 KB Output is correct
24 Correct 9 ms 5552 KB Output is correct
25 Correct 9 ms 5552 KB Output is correct
26 Correct 6 ms 5552 KB Output is correct
27 Correct 6 ms 5552 KB Output is correct
28 Correct 6 ms 5552 KB Output is correct
29 Correct 9 ms 5552 KB Output is correct
30 Correct 9 ms 5552 KB Output is correct

Subtask #2
0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 5552 KB Output is correct
2 Correct 476 ms 5552 KB Output is correct
3 Correct 673 ms 5552 KB Output is correct
4 Execution timed out 1000 ms 5552 KB Execution timed out
5 Halted 0 ms 0 KB -