Submission #98233

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
98233	2019-02-21 15:43:01	dalgerok	Mate (COCI18_mate)	C++17	100 / 100	541 ms	14720 KiB

mate

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#include<bits/stdc++.h>
using namespace std;
const int N = 2005, M = 26, MOD = 1e9 + 7;
string s;
int n, m, dp[N][M][M], sum[N][M];
inline void upd(int &x, int y){
    x += y;
    if(x >= MOD){
        x -= MOD;
    }
}
int main(){
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    cin >> s;
    n = (int)s.size();
    for(auto &it : s){
        it -= 'a';
    }
    s = '#' + s;
    for(int i = 1; i <= n; i++){
        for(int j = i; j >= 2; j--){
 
 
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Compilation message (stderr)

mate.cpp: In function 'int main()':
mate.cpp:32:34: warning: array subscript has type 'char' [-Wchar-subscripts]
                 upd(dp[j][k][s[i]], sum[j - 1][k]);
                                  ^
mate.cpp:33:32: warning: array subscript has type 'char' [-Wchar-subscripts]
                 upd(sum[j][s[i]], sum[j - 1][k]);
                                ^
mate.cpp:36:24: warning: array subscript has type 'char' [-Wchar-subscripts]
         upd(sum[1][s[i]], 1);
                        ^
mate.cpp:45:26: warning: array subscript has type 'char' [-Wchar-subscripts]
         cout << dp[len][x][y] << "\n";
                          ^
mate.cpp:45:29: warning: array subscript has type 'char' [-Wchar-subscripts]
         cout << dp[len][x][y] << "\n";
                             ^

• Subtask 1: 100 / 100