35 lines
575 B
C++
35 lines
575 B
C++
#include<cstdio>
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#include<cstring>
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char s[100][255];
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int l[100];
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int main(void)
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{
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int n;
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char tmp1[1000],tmp2[1000];
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scanf("%d",&n);
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for (int i=0;i<n;i++)
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{
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scanf("%s",s[i]);
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l[i]=strlen(s[i]);
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}
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for (int i=1;i<n;i++)
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for (int j=0;j<n-i;j++)
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{
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strcpy(tmp1,s[j]);
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strcat(tmp1,s[j+1]);
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strcpy(tmp2,s[j+1]);
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strcat(tmp2,s[j]);
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if (strcmp(tmp1,tmp2)<0)
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{
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strcpy(tmp1,s[j]);
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strcpy(s[j],s[j+1]);
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strcpy(s[j+1],tmp1);
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}
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}
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for (int i=0;i<n;i++)
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printf("%s",s[i]);
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putchar('\n');
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return 0;
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}
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