27 lines
448 B
C
27 lines
448 B
C
#include <stdio.h>
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#include <time.h>
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void compute( void );
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void main()
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{
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time_t start_time, end_time;
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start_time = time( NULL );
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compute();
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end_time = time( NULL );
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printf( "Elapsed time: %f seconds\n",
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difftime( end_time, start_time ) );
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}
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void compute( void )
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{
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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 <= 20; j++ )
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printf( "%3d ", i * j );
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printf( "\n" );
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}
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}
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