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POBug with quantity of float numbers on C
 

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  1. POBug with quantity of float numbers on C
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    <p>Well, first of all, I'm nothing close to versed on C, so this might have a simple answer, but I can't figure out what it could be. Moreover, my English is not what you'd call perfect, so I apologize in advance if I make myself hard to understand.</p> <p>I'm trying to do this little program that would let me do simple calculations for travel time with fixed speeds, where all I'd have to input is the distance to travel. I started to code it, and soon enough I got a semi-functional console program, but then it started to grow and grow, and then came a point where I seemingly can't add any more float numbers to the code. Here's the code so far:</p> <pre><code>#include&lt;stdio.h&gt; #include &lt;string.h&gt; #include &lt;math.h&gt; /* TENGO QUE ARREGLAR ESTO, ME CAUSA BRONCA CON EL NÚMERO TOTAL DE FLOAT NUMBERS*/ main() { float x1, km, mn, mn1, mn1a, mn1b, mn1c, mn2, mn2a, mn2b, mn2c, mn3, mn3a, mn3b, mn3c, mn4; int c=1; printf("\n\n\tTiempo de recorrido\n\n"); if (x1 &gt;= 0) { do { printf("\tEscribe distancia en mapa: "); scanf("%f", &amp;x1); c = x1; km = x1*50; // Distancia real mn = km; mn1 = mn/5; // Tiempo de viaje mn1a = mn1/18; // Jornadas de marcha mn1b = mn1 + (floorf(mn1a)*6); // Tiempo total del viaje mn1c = mn1b/24; // Días totales de viaje mn2 = mn/8;// Tiempo de viaje mn2a = mn2/18; // Jornadas de marcha mn2b = mn2 + (floorf(mn2a)*6); // Tiempo total del viaje mn2c = mn2b/24; // Dias totales de viaje mn3 = mn/25;// Tiempo de viaje mn3a = mn3/18; //Instrucciones PRINT printf("\n\n\tNumero de kilometros = %3.2f km", km); if (mn1 &lt; 24){ printf("\n\n\tTiempo a 5 km/h (caminata) = %3.2f horas", mn1); } else{ printf("\n\n\tViaje en caminata (5 km/h)\n"); printf("\n\tTiempo de recorrido = %3.2f horas", mn1); printf("\n\tJornadas de marcha = %3.2f jornadas", mn1a); printf("\n\tTiempo total = %3.2f horas", mn1b); printf("\n\tDias totales = %3.2f dias\n", mn1c);} if (mn2 &lt; 24){ printf("\n\tTiempo a 8 km/h (a caballo) = %3.2f horas", mn2);} else{ printf("\n\n\tViaje a caballo (8 km/h)\n"); printf("\n\tTiempo de viaje = %3.2f horas", mn2); printf("\n\tJornadas de marcha = %3.2f dias", mn2a); printf("\n\tTiempo total = %3.2f horas", mn2b); printf("\n\tDias totales = %3.2f dias\n", mn2c); } if (mn3 &lt; 24){ printf("\n\tTiempo a 25 km/h = %3.2f horas\n", mn3); } else{ printf("\n\n\tTrote de caballo (25 km/h)\n"); printf("\n\tTiempo de viaje = %3.2f horas", mn3); printf("\n\tJornadas de marcha = %&amp;.2f días", mn3a); printf("\n\tJornadas de marcha = %3.2f horas", mn3); } } while (c &gt;= 0); } else{ getch(); } } </code></pre> <p>Now, when I try to run the code as it is above, there's no problem with the output. But, when I try to add another variable declaration below (with mn4 which is already added on the float declaration), the program bugs out: I only get the text "Escribe la distancia en el mapa" (without the : symbol"), and when I type any key, it sends the message "Process exited with return value 49/50", and it closes after the next keystroke.</p> <p>I've tried thinkering with the code in any way I can think of, but nothing worked, except that it changed the return values between 49 and 50, for some reason. I hope someone could tell me how to fix this, or, if that's not possible, to tell me why it's so, so I can find a way around that.</p> <p>Thanks in advance.</p>
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    1. USOmar Vega
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    1. COYou should learn about and then use arrays (plus for loops) instead of needing so many variables with very similar names and very similar calculations. http://www.cplusplus.com/doc/tutorial/arrays/ (You should also consider not using C as C is very low level and you are not coding anything that needs the performance - coding in a language like Python will make it quicker for YOU, the programmer, to write and the performance difference will be negligible. Hopefully I will not get flamed for this :) )
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    2. CO`= %&.2f días", mn3a);` - invalid format modifier!
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      1. USsuspectus
 

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