oj.uz

Submission #69998

# Submission time Handle Problem Language Result Execution time Memory
69998 2018-08-22T08:21:24 Z vanogam parentrises (BOI18_parentrises) C++14
100 / 100
 399 ms 216968 KB 
#include<bits/stdc++.h>
using namespace std;
long long a,s,d[303][303][303],d1[1000002],pas[303],pas1[302],f,g,h,j,k,l,i,n,m,mod=1000000007;
stack<int> q1,q2;
main(){
    ios::sync_with_stdio(0);
    cin>>j;
    if(j==1){
        cin>>n;
        string x;


        for(i=0;i<n;i++){
            cin>>x;
            j=-1;f=0;
            while(q1.size()) q1.pop();
            while(q2.size()) q2.pop();
            for(a=0;a<x.size();a++){
                d1[a]=0;
                if(x[a]=='(') f++;
                else {
                    if(f) {q1.push(a);f--;}
                    else {
                        if(q1.empty()) {cout<<"impossible\n";break;}
                        d1[a]=1;
                        d1[q1.top()]=2;
                        q1.pop();
                        j=a;//cout<<"*";
                    }
                }
            }
            f=0;
            if(a!=x.size()) continue;
            for(a=x.size()-1;a>j;a--){//cout<<"*";
                if(x[a]==')') f++;
                else {
                    if(f) {q2.push(a);f--;}
                    else {
                        if(q2.empty()) {cout<<"impossible\n";break;}
                        d1[a]=1;
                        d1[q2.top()]=2;
                        q2.pop();
                        //j=a;
                    }
                }
            }
            if(a!=j) continue;
            for(a=0;a<x.size();a++){
                if(d1[a]==0) cout<<"G";
                if(d1[a]==1) cout<<"R";
                if(d1[a]==2) cout<<"B";
            }
            cout<<endl;
        }
    }
    else{
        cin>>n;
        d[0][0][0]=1;
        for(i=0;i<=300;i++){
            for(a=0;a<=300;a++){
                for(j=0;j<=300;j++){
                    d[i+1][a+1][j]+=d[i][a][j];
                    if(d[i+1][a+1][j]>=mod) d[i+1][a+1][j]-=mod;
                    if(a){
                        d[i+1][a-1][j+1]+=d[i][a][j];
                        if(d[i+1][a-1][j+1]>=mod) d[i+1][a-1][j+1]-=mod;
                    }
                    else{
                        pas[i]+=d[i][0][j];
                        if(pas[i]>mod) pas[i]-=mod;
                        if(j){

                            d[i+1][0][j-1]+=d[i][0][j];
                            if(d[i+1][0][j-1]>=mod) d[i+1][0][j-1]-=mod;
                            pas1[i+1]+=d[i+1][0][j-1];
                            if(pas1[i+1]>mod) pas1[i+1]-=mod;
                        }
                    }
                }
            }
        }
    pas1[0]=1;
        for(i=0;i<n;i++){
            cin>>a;
            k=0;
            for(j=0;j<=a;j++){//cout<<pas[j]<<" "<<pas1[j]<<endl;
                k=(k+pas1[j]*pas[a-j])%mod;
            }
            cout<<k<<endl;
        }
    }
}

Compilation message

parentrises.cpp:5:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main(){
      ^
parentrises.cpp: In function 'int main()':
parentrises.cpp:18:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             for(a=0;a<x.size();a++){
                     ~^~~~~~~~~
parentrises.cpp:33:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             if(a!=x.size()) continue;
                ~^~~~~~~~~~
parentrises.cpp:48:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             for(a=0;a<x.size();a++){
                     ~^~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 248 KB Output is correct
2 Correct 1 ms 356 KB Output is correct
3 Correct 3 ms 392 KB Output is correct
4 Correct 3 ms 596 KB Output is correct
5 Correct 3 ms 596 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 596 KB Output is correct
2 Correct 2 ms 596 KB Output is correct
3 Correct 4 ms 596 KB Output is correct
4 Correct 2 ms 596 KB Output is correct
5 Correct 2 ms 596 KB Output is correct

Subtask #3
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 596 KB Output is correct
2 Correct 2 ms 596 KB Output is correct
3 Correct 4 ms 596 KB Output is correct
4 Correct 2 ms 596 KB Output is correct
5 Correct 2 ms 596 KB Output is correct
6 Correct 2 ms 596 KB Output is correct
7 Correct 3 ms 596 KB Output is correct
8 Correct 3 ms 724 KB Output is correct
9 Correct 3 ms 724 KB Output is correct
10 Correct 4 ms 724 KB Output is correct

Subtask #4
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 596 KB Output is correct
2 Correct 2 ms 596 KB Output is correct
3 Correct 4 ms 596 KB Output is correct
4 Correct 2 ms 596 KB Output is correct
5 Correct 2 ms 596 KB Output is correct
6 Correct 2 ms 596 KB Output is correct
7 Correct 3 ms 596 KB Output is correct
8 Correct 3 ms 724 KB Output is correct
9 Correct 3 ms 724 KB Output is correct
10 Correct 4 ms 724 KB Output is correct
11 Correct 3 ms 724 KB Output is correct
12 Correct 2 ms 740 KB Output is correct
13 Correct 3 ms 740 KB Output is correct
14 Correct 4 ms 740 KB Output is correct
15 Correct 3 ms 772 KB Output is correct
16 Correct 18 ms 772 KB Output is correct
17 Correct 8 ms 1832 KB Output is correct
18 Correct 6 ms 1832 KB Output is correct
19 Correct 8 ms 1832 KB Output is correct
20 Correct 11 ms 1916 KB Output is correct
21 Correct 114 ms 1916 KB Output is correct
22 Correct 65 ms 12744 KB Output is correct
23 Correct 54 ms 12744 KB Output is correct
24 Correct 59 ms 12744 KB Output is correct
25 Correct 63 ms 12744 KB Output is correct

Subtask #5
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 296 ms 216956 KB Output is correct

Subtask #6
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 296 ms 216956 KB Output is correct
2 Correct 329 ms 216968 KB Output is correct

Subtask #7
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 296 ms 216956 KB Output is correct
2 Correct 329 ms 216968 KB Output is correct
3 Correct 399 ms 216968 KB Output is correct