70 lines
1.5 KiB
C
70 lines
1.5 KiB
C
#include <stdbool.h>
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#include <stdio.h>
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#define EPSILON 0.000001
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typedef struct {
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int no;
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float juice, alcohol;
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} Barrel;
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bool readInput(Barrel * line, Barrel * reservoir) {
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int i;
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float f;
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for (i = 0; i < 4; i++) {
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if (!(scanf(" %f", &f)) || f <= 0)
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return false;
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if (i % 2 == 0) {
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line[i / 2].no = i / 2 + 1;
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line[i / 2].juice = f;
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}
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else {
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if (f > 1)
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return false;
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line[i / 2].alcohol = f * line[i / 2].juice;
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line[i / 2].juice -= line[i / 2].alcohol;
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}
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reservoir->juice = line[0].juice + line[1].juice;
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reservoir->alcohol = line[0].alcohol + line[1].alcohol;
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}
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return true;
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}
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void sortLine(Barrel * line) {
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Barrel aux;
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if (line[0].juice + line[0].alcohol > line[1].juice + line[1].alcohol)
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return;
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aux = line[0];
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line[0] = line[1];
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line[1] = aux;
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}
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int loadBarrel (Barrel * reservoir, Barrel b) {
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float capacity = b.juice + b.alcohol;
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if (reservoir->juice - capacity * 0.86 >= -EPSILON
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&& reservoir->alcohol - capacity * 0.14 >= -EPSILON) {
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reservoir->juice -= capacity * 0.86;
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reservoir->alcohol -= capacity * 0.14;
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return b.no;
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}
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return 0;
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}
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int balance() {
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int i, result = 0;
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Barrel line[2], reservoir;
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if (!readInput(line, &reservoir))
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return EOF;
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sortLine(line);
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for (i = 0; i < 2; i++)
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result += loadBarrel(&reservoir, line[i]);
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return result;
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}
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