oj.uz

Submission #39621

# Submission time Handle Problem Language Result Execution time Memory
39621 2018-01-16T19:09:12 Z Hassoony Retro (COCI17_retro) C++14
2 / 100
 500 ms 117360 KB 
#include<bits/stdc++.h>
#define F first
#define S second
using namespace std;
typedef long long ll;
const ll mod=1e9+7;
const int inf=(1<<30);
const int MX=309;
char a[MX][MX];
int n,m,dp[MX][MX][MX];
int DP(int x,int y,int open){
    if(y<=0||y>m||open<0)return -inf;
    if(x==0){
        if(open)return -inf;
        return 0;
    }
    if(a[x][y]=='*'){
        if(open)return -inf;
        return 0;
    }
    int &ret=dp[x][y][open];if(ret!=-1)return ret;
    vector<pair<char,int> >v;
    v.push_back({a[x-1][y-1],y-1});
    v.push_back({a[x-1][y],y});
    v.push_back({a[x-1][y+1],y+1});
    sort(v.begin(),v.end());
    for(auto pp:v){
        int open1=open,add=0;
        if(pp.first=='(')open1++;
        if(pp.first==')')open1--,add=2;
        ret=max(ret,DP(x-1,pp.second,open1)+add);
        ret=max(ret,DP(x-1,pp.second,open));
    }
    return ret;
}
void FDP(int x,int y,int open){
    if(y<=0||y>m||open<0)return;
    if(x==0)return;
    if(a[x][y]=='*')return;
    int &ret=dp[x][y][open];
    vector<pair<char,int> >v;
    v.push_back({a[x-1][y-1],y-1});
    v.push_back({a[x-1][y],y});
    v.push_back({a[x-1][y+1],y+1});
    sort(v.begin(),v.end());
    for(auto pp:v){
        int open1=open,add=0;
        if(pp.first=='(')open1++;
        if(pp.first==')')open1--,add=2;
        if(ret==DP(x-1,pp.second,open1)+add){
            if(pp.first!='.'&&pp.first!='*')printf("%c",pp.first);
            FDP(x-1,pp.second,open1);
            return;
        }
        if(ret==DP(x-1,pp.second,open)){
            FDP(x-1,pp.second,open);
            return;
        }
    }
}
int main(){
    scanf("%d%d",&n,&m);
    for(int i=1;i<=n;i++){
        for(int j=1;j<=m;j++){
            cin>>a[i][j];
        }
    }
    memset(dp,-1,sizeof(dp));
    int j;
    for(int i=1;i<=m;i++){
        if(a[n][i]=='M')j=i;
    }
    cout<<DP(n,j,0)<<endl;
    FDP(n,j,0);
    puts("");
}

Compilation message

retro.cpp: In function 'int main()':
retro.cpp:62:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d",&n,&m);
                        ^
retro.cpp:73:19: warning: 'j' may be used uninitialized in this function [-Wmaybe-uninitialized]
     cout<<DP(n,j,0)<<endl;
                   ^

Subtask #1
2.0 / 100.0

# Verdict Execution time Memory Grader output
1 Partially correct 16 ms 117360 KB Partially correct
2 Incorrect 13 ms 117360 KB Token "(())()()
3 Incorrect 6 ms 117360 KB Token "()(()())
4 Incorrect 6 ms 117360 KB Token "(((())))
5 Incorrect 13 ms 117360 KB Token "()((()))()
6 Incorrect 116 ms 117360 KB Token "()((()((())()()((()())))(())()()(()())))
7 Incorrect 489 ms 117360 KB Token "((())(()(()(()))(())(()()())()))(()()())(())
8 Execution timed out 500 ms 117360 KB Execution timed out
9 Execution timed out 500 ms 117360 KB Execution timed out
10 Execution timed out 500 ms 117360 KB Execution timed out
11 Execution timed out 500 ms 117360 KB Execution timed out
12 Execution timed out 500 ms 117360 KB Execution timed out
13 Execution timed out 500 ms 117360 KB Execution timed out
14 Execution timed out 500 ms 117360 KB Execution timed out
15 Execution timed out 500 ms 117360 KB Execution timed out
16 Execution timed out 500 ms 117360 KB Execution timed out
17 Execution timed out 500 ms 117360 KB Execution timed out
18 Execution timed out 500 ms 117360 KB Execution timed out
19 Execution timed out 500 ms 117360 KB Execution timed out
20 Execution timed out 500 ms 117360 KB Execution timed out