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main( )

{ int a[4][4]={{1,2,3,4},{0,2,4,5},{3,6,9,12},{3,2,1,0}}; printf(\}

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void sort(int a[],int n) { in t i,j,t;

for(i=0;i

for(j=i+2;j

if(a[i]

{ t=a[i];a[i]=a[j];a[j]=t;}

}

main()

{ int aa[10]={1,2,3,4,5,6,7,8,9,10},i; sort(aa,10);

for(i=0;i<10;i++)

printf(\ printf(\}

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void f(int a[],int i,int j) { int t; if(i

{ t=a[i]; a[i]=a[j];a[j]=t; f(a,i+1,j-1); } }

main( )

{ int i,aa[5]={1,2,3,4,5}; f(aa,0,4);

for(i=0;i<5;i++)

printf(\printf(\}

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main()

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main()

{ int b[3][3]={0,1,2,0,1,2,0,1,2},i,j,t=1;

for(i=0;i<3;i++)

for(j=i;j<=i;j++) t=t+b[i][b[j][j]]; printf(\}

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main()

{ int aa[4][4]={{1,2,3,4},{5,6,7,8},{3,9,10,2},{4,2,9,6}};

int i,s=0;

for(i=0;i<4;i++) s+=aa[i][1]; printf(\}

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for(j=0;ch[j])>=¡¯0¡¯&&ch[j]<=¡¯9¡¯;j+=2)

s=10*s+ch[j]-¡®0¡¯; printf(¡°%d\\n¡±,s); }

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main()

{ int n[5]={0,0,0},j,k=2;

for(j=0;j

printf(¡°%d\\n¡±,n[k]); }

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