oj.uz

Submission #39628

# Submission time Handle Problem Language Result Execution time Memory
39628 2018-01-16T19:29:30 Z Hassoony Retro (COCI17_retro) C++14
35 / 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;
    pair<char,int>v[3];
    v[0]={a[x-1][y-1],y-1};
    v[1]={a[x-1][y],y};
    v[2]={a[x-1][y+1],y+1};
    sort(v,v+3);
    for(int i=0;i<3;i++){
        pair<char,int>pp=v[i];
        int open1=open,add=0;
        if(pp.first=='(')open1++;
        if(pp.first==')')open1--,add=2;
        if((pp.first=='('||pp.first==')'))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];
    pair<char,int>v[3];
    v[0]={a[x-1][y-1],y-1};
    v[1]={a[x-1][y],y};
    v[2]={a[x-1][y+1],y+1};
    sort(v,v+3);
    for(int i=0;i<3;i++){
        pair<char,int>pp=v[i];
        int open1=open,add=0;
        if(pp.first=='(')open1++;
        if(pp.first==')')open1--,add=2;
        if(pp.first=='('||pp.first==')')if(ret==DP(x-1,pp.second,open1)+add){
            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:64:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d",&n,&m);
                        ^
retro.cpp:75:19: warning: 'j' may be used uninitialized in this function [-Wmaybe-uninitialized]
     cout<<DP(n,j,0)<<endl;
                   ^

Subtask #1
35.0 / 100.0

# Verdict Execution time Memory Grader output
1 Partially correct 9 ms 117360 KB Partially correct
2 Correct 9 ms 117360 KB Output is correct
3 Partially correct 13 ms 117360 KB Partially correct
4 Partially correct 0 ms 117360 KB Partially correct
5 Correct 6 ms 117360 KB Output is correct
6 Partially correct 19 ms 117360 KB Partially correct
7 Partially correct 19 ms 117360 KB Partially correct
8 Partially correct 16 ms 117360 KB Partially correct
9 Correct 63 ms 117360 KB Output is correct
10 Partially correct 36 ms 117360 KB Partially correct
11 Execution timed out 500 ms 117360 KB Execution timed out
12 Execution timed out 500 ms 117360 KB Execution timed out
13 Partially correct 253 ms 117360 KB Partially correct
14 Partially correct 399 ms 117360 KB Partially correct
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 Partially correct 313 ms 117360 KB Partially correct
19 Execution timed out 500 ms 117360 KB Execution timed out
20 Execution timed out 500 ms 117360 KB Execution timed out