Submission #108178

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Source Code Expand

#include <stdio.h>

typedef struct {
	int s;
	int e;
} DATA;

int compare( const void *a, const void *b ) {
	return (*(DATA *)a).s - (*(DATA *)b).s;
}

DATA data[ 30000 ];
DATA out[ 30000 ];

int main( void ) {
	int i, n, m;

	scanf( "%d", &n );

	for ( i = 0; i < n; i++ ) {
		int s, e;

		scanf( "%d-%d", &s, &e );

		s = ( s / 100 * 60 + s % 100 ) / 5 * 5;
		e = ( e / 100 * 60 + e % 100 + 4 ) / 5 * 5;

		data[ i ].s = s;
		data[ i ].e = e;
	}

	qsort( data, n, sizeof(DATA), &compare );

	out[ 0 ].s = data[ 0 ].s;
	out[ 0 ].e = data[ 0 ].e;
	m = 1;
	for ( i = 1; i < n; i++ )
		if ( out[ m - 1 ].e < data[ i ].s ) {
			out[ m ].s = data[ i ].s;
			out[ m ].e = data[ i ].e;
			m++;
		} else
			out[ m - 1 ].e = out[ m - 1 ].e < data[ i ].e ? data[ i ].e : out[ m - 1 ].e;

	for ( i = 0; i < m; i++ )
		printf( "%04d-%04d\n", out[ i ].s / 60 * 100 + out[ i ].s % 60, out[ i ].e / 60 * 100 + out[ i ].e % 60 );

	return 0;
}

Submission Info

Compile Error

./Main.c: In function ‘main’:
./Main.c:18:7: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
./Main.c:23:8: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]

Judge Result