36 lines
		
	
	
	
		
			402 B
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			36 lines
		
	
	
	
		
			402 B
		
	
	
	
		
			C
		
	
	
	
	
	
#include <stdio.h>
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int main(){
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    int k,i,j;
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for(;;){
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for(k=0;k<101;k++){
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    printf("[");
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    for(i=0;i<100-k;i++){
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        printf(":");
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    }
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    for(i=0;i<k;i++){
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        printf(" ");
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    }
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    printf("]\n");
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}
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printf("\n");
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for(k=0;k<101;k++){
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    printf("[");
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    for(i=0;i<k;i++){
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        printf(":");
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    }
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    for(i=0;i<100-k;i++){
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        printf(" ");
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    }
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    printf("]\n");
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}
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}
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}
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