【openjudge 计算概论（A）】[指针练习]

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#include<cstdio>using namespace std;int a[110],n;int main(){ int i; scanf("%d",&n); for (i=1;i<=n;i++)  scanf("%d",&a[i]); for (i=n;i>0;i--)  printf("%d ",a[i]); return 0;}

#include<cstdio>#include<cstring>using namespace std;int maxn,tm,n,len;char s[210];int main(){    int i,j;    scanf("%d",&n);    for (i=1;i<=n;++i)     {        int t=1;        scanf("%s",s);        len=strlen(s);        for (j=1;j<len;++j)         if (s[j]==s[j-1]) t++;          else           if (t>maxn) maxn=t,tm=s[j-1],t=1;            else t=1;        if (t>maxn) maxn=t,tm=s[len-1];        printf("%c %d\n",tm,maxn);        maxn=tm=0;     }    return 0;}

#include<cstdio>#include<cstring>#include<algorithm>using namespace std;char s[100010];int n,len,last;int main(){ int i,j,k; scanf("%d\n",&n); gets(s); len=strlen(s); i=0;j=1; while(i<len)  {    while(i<len&&j<=80)     ++i,++j;    while(s[i]!=' '&&i!=len)     i--,j--;    for (k=last;k<i;++k)     printf("%c",s[k]);    last=i+1;    printf("\n");    j=0;  }}

#include<cstdio>#include<cstring>using namespace std;int k,n,m;long long ans;int main(){    int i,j,t;    scanf("%d",&k);    for (t=1;t<=k;++t)     {        scanf("%d%d",&m,&n);        for (i=1;i<=m;i++)         for (j=1;j<=n;++j)          {            long long x;            scanf("%lld",&x);            if(i==1||i==m||j==1||j==n) ans+=x;           }        printf("%lld\n",ans);        ans=0;     }    return 0;}

#include<cstdio>#include<cstring>#include<algorithm>using namespace std;int a[110][110],n,m;bool p[110][110];int main(){int i,j;scanf("%d%d",&n,&m);for(i=1;i<=n;++i) for(j=1;j<=m;++j)  scanf("%d",&a[i][j]);for(i=1;i<=n;++i) for(j=1;j<=m;++j)  if(!p[i][j])      {      int x=i,y=j;      while(x<=n&&y) printf("%d\n",a[x][y]),p[x++][y--]=1;  }return 0;}

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