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Submission #1055360

# Submission time Handle Problem Language Result Execution time Memory
1055360 2024-08-12T18:07:05 Z YassirSalama Crossing (JOI21_crossing) C++17
3 / 100
 7000 ms 5176 KB 
#include<bits/stdc++.h>
using namespace std;
#define int long long
const int mod=1e9+7,P=31;
map<char,int> mp;
int binpow(int a,int b){
    int res=1;
    while(b){
        if(b&1) {
            res=(res*a%mod)%mod;
        }
        a=(a*a%mod)%mod;
        b>>=1;
    }
    return res;
}
vector<int> hsh(string s){
    int n=s.length();
    int c=1;
    vector<int> v(n);
    for(int i=0;i<n;i++){
        int x=mp[s[i]];
        v[i]=(x*c%mod)%mod;
        c=(c*P%mod)%mod;
    }
    return v;
}
#define all(v) v.begin(),v.end()
signed main(){mp['J']=1;mp['O']=2;mp['I']=3;
ios_base::sync_with_stdio(0);cin.tie(0);
    int n;
    cin>>n;
    string s;
    cin>>s>>s>>s;
    int q;
    cin>>q;
    string t;
    cin>>t;
    vector<int> a=hsh(s);
    vector<int> b=hsh(t);
    int sum=0;
    int ans=0;
    for(auto x:a){
        ans+=x;
        ans%=mod;
    }
    for(auto x:b) {
        sum+=x;
        sum%=mod;
    }
    puts(ans==sum?"Yes":"No");
    while(q--){
        int l,r;
        cin>>l>>r;
        l--,r--;
        char c;
        cin>>c;
        for(int i=l;i<=r;i++){
            sum-=b[i];
            sum%=mod;
            if(sum<0) sum+=mod;
            sum%=mod;
            b[i]=(mp[c]*binpow(P,i)%mod)%mod;
            sum+=b[i];
            sum%=mod;
            if(sum<0) sum+=mod;
            sum%=mod;
        }
        if(ans==sum){
            puts("Yes");
        }else puts("No");
    }
}

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 67 ms 2388 KB Output is correct
2 Correct 87 ms 2388 KB Output is correct
3 Correct 367 ms 2396 KB Output is correct
4 Correct 68 ms 2384 KB Output is correct
5 Correct 66 ms 2412 KB Output is correct
6 Correct 64 ms 2388 KB Output is correct
7 Correct 65 ms 2384 KB Output is correct
8 Correct 87 ms 2472 KB Output is correct
9 Correct 68 ms 2420 KB Output is correct
10 Correct 82 ms 2388 KB Output is correct
11 Correct 72 ms 2388 KB Output is correct
12 Correct 78 ms 2336 KB Output is correct
13 Correct 71 ms 2388 KB Output is correct
14 Correct 76 ms 2388 KB Output is correct
15 Correct 73 ms 2516 KB Output is correct
16 Correct 78 ms 2388 KB Output is correct
17 Correct 69 ms 2388 KB Output is correct
18 Correct 367 ms 2408 KB Output is correct

Subtask #2
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 67 ms 2388 KB Output is correct
2 Correct 87 ms 2388 KB Output is correct
3 Correct 367 ms 2396 KB Output is correct
4 Correct 68 ms 2384 KB Output is correct
5 Correct 66 ms 2412 KB Output is correct
6 Correct 64 ms 2388 KB Output is correct
7 Correct 65 ms 2384 KB Output is correct
8 Correct 87 ms 2472 KB Output is correct
9 Correct 68 ms 2420 KB Output is correct
10 Correct 82 ms 2388 KB Output is correct
11 Correct 72 ms 2388 KB Output is correct
12 Correct 78 ms 2336 KB Output is correct
13 Correct 71 ms 2388 KB Output is correct
14 Correct 76 ms 2388 KB Output is correct
15 Correct 73 ms 2516 KB Output is correct
16 Correct 78 ms 2388 KB Output is correct
17 Correct 69 ms 2388 KB Output is correct
18 Correct 367 ms 2408 KB Output is correct
19 Execution timed out 7059 ms 5176 KB Time limit exceeded
20 Halted 0 ms 0 KB -

Subtask #3
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 67 ms 2388 KB Output is correct
2 Correct 87 ms 2388 KB Output is correct
3 Correct 367 ms 2396 KB Output is correct
4 Correct 68 ms 2384 KB Output is correct
5 Correct 66 ms 2412 KB Output is correct
6 Correct 64 ms 2388 KB Output is correct
7 Correct 65 ms 2384 KB Output is correct
8 Correct 87 ms 2472 KB Output is correct
9 Correct 68 ms 2420 KB Output is correct
10 Correct 82 ms 2388 KB Output is correct
11 Correct 72 ms 2388 KB Output is correct
12 Correct 78 ms 2336 KB Output is correct
13 Correct 71 ms 2388 KB Output is correct
14 Correct 76 ms 2388 KB Output is correct
15 Correct 73 ms 2516 KB Output is correct
16 Correct 78 ms 2388 KB Output is correct
17 Correct 69 ms 2388 KB Output is correct
18 Correct 367 ms 2408 KB Output is correct
19 Correct 91 ms 2388 KB Output is correct
20 Correct 360 ms 2384 KB Output is correct
21 Incorrect 84 ms 2388 KB Output isn't correct
22 Halted 0 ms 0 KB -

Subtask #4
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 67 ms 2388 KB Output is correct
2 Correct 87 ms 2388 KB Output is correct
3 Correct 367 ms 2396 KB Output is correct
4 Correct 68 ms 2384 KB Output is correct
5 Correct 66 ms 2412 KB Output is correct
6 Correct 64 ms 2388 KB Output is correct
7 Correct 65 ms 2384 KB Output is correct
8 Correct 87 ms 2472 KB Output is correct
9 Correct 68 ms 2420 KB Output is correct
10 Correct 82 ms 2388 KB Output is correct
11 Correct 72 ms 2388 KB Output is correct
12 Correct 78 ms 2336 KB Output is correct
13 Correct 71 ms 2388 KB Output is correct
14 Correct 76 ms 2388 KB Output is correct
15 Correct 73 ms 2516 KB Output is correct
16 Correct 78 ms 2388 KB Output is correct
17 Correct 69 ms 2388 KB Output is correct
18 Correct 367 ms 2408 KB Output is correct
19 Execution timed out 7059 ms 5176 KB Time limit exceeded
20 Halted 0 ms 0 KB -