编译错误: /code/judger/test/1836736091462660096/main.cpp:17:11: error: empty character constant
 if(a[i][j]'')cout<<"";
           ^~
/code/judger/test/1836736091462660096/main.cpp: In function 'int main()':
/code/judger/test/1836736091462660096/main.cpp:17:11: error: expected ')' before '\x0'
/code/judger/test/1836736091462660096/main.cpp:23:11: error: expected ')' before '*'
 if(a[l][r]'*')
           ^~~

#include <bits/stdc++.h>
using namespace std;

int main()
{
    int n,m;
    cin>>n>>m;
    char a[105][105];
    for(int i=1;i<=n;i++)
    {
        for(int j=1;j<=m;j++)cin>>a[i][j];
    }
    for(int i=1;i<=n;i++)
    {
        for(int j=1;j<=m;j++)
        {
            if(a[i][j]=='*')cout<<"*";
            else
            {
                int b=0;
                for(int l=i-1;l<=i+1;l++)
					for(int r=j-1;r<=j+1;r++)
						if(a[l][r]=='*')
							b++;
                cout<<b;
            }
        }
        cout<<endl;
    }
    return 0;
}


[NOIP2015 普及组] 扫雷游戏

题解

#include <bits/stdc++.h>
using namespace std;

int main()
{
int n,m;
cin>>n>>m;
char a[105][105];
for(int i=1;i<=n;i++)


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