41 lines
1.4 KiB
C
41 lines
1.4 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdbool.h>
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#include <time.h>
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int main() {
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while (true) {
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srand(time(0));
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printf("Train\n");
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printf("Creative Computing Morristown, New Jersey\n");
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printf("Time - Speed Distance Exercise:");
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int car = (rand() %(65-40+1))+40;
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int distance = (rand() %(20-5+1))+5;
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int train = (rand() %(39-20+1))+20;
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printf(" A car traveling %d MPH can make a certain trip in %d hours less than a train traveling at %d MPH.\n", car, distance, train);
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while (true) {
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char input[5];
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printf("\nHow long does a trip take by car ");
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fgets(input, 5, stdin);
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double answer = atof(input);
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int car_time = distance * train / (car - train);
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int percent = abs(((car_time)-answer)*100/answer)+.5;
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if (percent > 5) {
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printf("Sorry, you were off by %d percent\n", percent);
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printf("Correct answer is %d hours\n", car_time);
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} else {
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printf("Good!, Answer within %d percent\n", percent);
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printf("Another Problem? (yes or no)");
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char newgame[5];
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fgets(newgame, 5,stdin);
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if (strcmp("yes", newgame)) {
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break;
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}
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return 1;
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}
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continue;
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}
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}
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}
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