13 lines
145 B
C
13 lines
145 B
C
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#include <stdio.h>
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#include <stdlib.h>
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int main(void){
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int i,j;
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for(i=1;i<=20;i++){
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for(j=1;j<=i;j++){
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printf(" %d ",(i+j)/2);
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}
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}
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}
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