Submission #343358
Source Code Expand
#include <algorithm> #include <cstdio> #include <cstdlib> #include <cctype> #include <cmath> #include <iostream> #include <queue> #include <list> #include <map> #include <numeric> #include <set> #include <sstream> #include <string> #include <vector> using namespace std; #define REP(i,a,n) for(int i=(a); i<(int)(n); i++) #define rep(i,n) REP(i,0,n) #define FOR(it,c) for(__typeof((c).begin()) it=(c).begin(); it!=(c).end(); ++it) #define ALLOF(c) (c).begin(), (c).end() typedef long long ll; #define MOD 1000000007 ll dp[255][10][255][255]; int main(){ int N, X; string str; cin >> N >> X; cin >> str; if(str[0] == '?'){ rep(i,10){ if(i==2){ dp[0][i][1][0] = 1; }else{ dp[0][i][0][0] = 1; } } }else{ int t = str[0]-'0'; if(t==2){ dp[0][t][1][0] = 1; }else{ dp[0][t][0][0] = 1; } } rep(i,N-1){ rep(j,10){ rep(k,i+2){ rep(l,X+2){ //cout << i << " " << j << " " << k << " " << l << " " << dp[i][j][k][l] << endl; if(str[i+1]=='?'){ rep(t,10){ if(t==2){ if(j==5){ dp[i+1][t][k+1][l] += dp[i][j][k][l]; dp[i+1][t][k+1][l] %= MOD; }else{ dp[i+1][t][1][l] += dp[i][j][k][l]; dp[i+1][t][1][l] %= MOD; } } else if(t==5){ if(j==2){ dp[i+1][t][k+1][min(X,l+(k+1)/2)] += dp[i][j][k][l]; dp[i+1][t][k+1][min(X,l+(k+1)/2)] %= MOD; }else{ dp[i+1][t][1][l] += dp[i][j][k][l]; dp[i+1][t][1][l] %= MOD; } } else{ dp[i+1][t][0][l] += dp[i][j][k][l]; dp[i+1][t][0][l] %= MOD; } } }else{ int t = str[i+1]-'0'; if(t==2){ if(j==5){ dp[i+1][t][k+1][l] += dp[i][j][k][l]; dp[i+1][t][k+1][l] %= MOD; }else{ dp[i+1][t][1][l] += dp[i][j][k][l]; dp[i+1][t][1][l] %= MOD; } } else if(t==5){ if(j==2){ dp[i+1][t][k+1][min(X,l+(k+1)/2)] += dp[i][j][k][l]; dp[i+1][t][k+1][min(X,l+(k+1)/2)] %= MOD; }else{ dp[i+1][t][1][l] += dp[i][j][k][l]; dp[i+1][t][1][l] %= MOD; } } else{ dp[i+1][t][0][l] += dp[i][j][k][l]; dp[i+1][t][0][l] %= MOD; } } } } } } ll ret = 0; rep(i,10){ rep(j,N){ ret = (ret + dp[N-1][i][j][X])%MOD; } } cout << ret << endl; return 0; }
Submission Info
Submission Time | |
---|---|
Task | A - ニコニコ文字列2 |
User | phyllo |
Language | C++ (G++ 4.6.4) |
Score | 0 |
Code Size | 2979 Byte |
Status | CE |
Compile Error
collect2: ld terminated with signal 9 [Killed]