Submission #1871647

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Source Code Expand

#include<bits/stdc++.h>
using namespace std;
const int maxn=100005;
long long dp[maxn][2];



int main()
{
    int n;
    scanf("%d",&n);
    for(int i=1;i<=n;i++)
    {
        for(int j=0;j<2;j++)
            dp[i][j]=-100000000000000000LL;
    }
    int x;
    scanf("%d",&x);
    dp[1][0]=x;
    for(int i=2;i<=n;i++)
    {
        int num;
        char s[3];
        scanf("%s%d",s,&num);
        if(s[0]=='-') {
            dp[i][0]=max(dp[i-1][0]-num,dp[i-1][1]+num);
            dp[i][1]=max(dp[i-1][0]-num,dp[i-1][1]+num);
        }
        else{
            dp[i][0]=max(dp[i-1][0]+num,dp[i-1][1]-num);
            dp[i][1]=max(dp[i-1][0]+num,dp[i-1][1]-num);
        }
       // printf("%lld %lld %d %s\n",dp[i][0],dp[i][1],num,s);
    }
    printf("%lld\n",max(dp[n][0],dp[n][1]));
    return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:11:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&n);
                   ^
./Main.cpp:18:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&x);
                   ^
./Main.cpp:24:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
         scanf("%s%d",s,&num);
                             ^

Judge Result