# Help! how to put vectors & loops in my assign

October 14, 2010 at 19:06:04
Specs: Windows Vista
 I am totally lost on the topic of vectors and loops. My teacher wants me to incorporate it into my C++ assignment, but I don't know where to start. Here is what he is asking for:In solving the problem, you must use the following commands and elements of C++:VectorsLoopsConditionals.They want to know both the highest and lowest temperatures of the day. You'll need to program this new report format into the system. Here's the proposed format:Enter reported temperatures...Weather Station 0 = 45Weather Station 1 = 44Weather Station 2 = 43Weather Station 3 = 51Weather Station 4 = 50========NGS Temperature Data Report======== Fahrenheit Celsius-------------------------------------------Lowest Temperature: 43.0 6.11-------------------------------------------Highest Temperature: 51.0 10.6-------------------------------------------Mean Temperature: 46.6 8.11-------------------------------------------Raw Data...WeatherStation 0 = 45.0 7.22WeatherStation 1 = 44.0 6.67WeatherStation 2 = 43.0 6.11WeatherStation 3 = 51.0 10.6WeatherStation 4 = 50.0 10.0-------------------------------------------========End Temperature Data Report========Where would I even begin? I'm sorry, but I am new to this so everything seems so difficult. I got though my first assignment easily but this one is kind of confusing. I've read my book a bunch of times but I still don't know how to input vectors and loops. Can someone please help me?

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#1
October 14, 2010 at 19:14:37
 Step 1: Declare a vector of, let's say, double.Step 2: Declare at least 3 more doubles, and probably an int, too.Step 3: Ask for user input.Step 4: Calculate the min/max/mean.Step 5: Output.EDIT: If you need help with any particular step, let us know and show us your code. The STL syntax (and template syntax in general) can throw people for a loop.

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#2
October 17, 2010 at 09:51:39
 #include #include main(){ float x[4],y,z; int i; printf("Enter reported temperatures...\n"); for(i=0;i<=4;i++) { printf("Weather station %d = ", i); scanf("%f", &x[i]); } printf("\n=====NGS Temperature Data Report=====\n\n"); printf("Fahrenheit Celsius\n\n"); for(i=0;i<37;i++) { printf("-"); } printf("\n\n"); if(x[0] < x[1] && x[0] < x[2] && x[0] < x[3] && x[0] < x[4]) { y =(x[0]-32)*5/9; printf("Lowest Temperature: %.1f %.2f\n", x[0],y); } else if(x[1] < x[0] && x[1] < x[2] && x[1] < x[3] && x[1] < x[4]) { y =(x[1]-32)*5/9; printf("Lowest Temperature: %.1f %.2f\n", x[1],y); } else if(x[2] < x[0] && x[2] < x[1] && x[2] < x[3] && x[2] < x[4]) { y =(x[2]-32)*5/9; printf("Lowest Temperature: %.1f %.2f\n", x[2],y); } else if(x[3] < x[0] && x[3] < x[1] && x[3] < x[2] && x[3] < x[4]) { y =(x[3]-32)*5/9; printf("Lowest Temperature: %.1f %.2f\n", x[3],y); } else if(x[4] < x[0] && x[4] < x[1] && x[4] < x[2] && x[4] < x[3]) { y =(x[4]-32)*5/9; printf("Lowest Temperature: %.1f %.2f\n", x[4],y); } printf("\n"); for(i=0;i<37;i++) { printf("-"); } printf("\n\n"); if(x[0] > x[1] && x[0] > x[2] && x[0] > x[3] && x[0] > x[4]) { y =(x[0]-32)*5/9; printf("Highest Temperature: %.1f %.2f\n", x[0],y); } else if(x[1] > x[0] && x[1] > x[2] && x[1] > x[3] && x[1] > x[4]) { y =(x[1]-32)*5/9; printf("Highest Temperature: %.1f %.2f\n", x[1],y); } else if(x[2] > x[0] && x[2] > x[1] && x[2] > x[3] && x[2] > x[4]) { y =(x[2]-32)*5/9; printf("Highest Temperature: %.1f %.2f\n", x[2],y); } else if(x[3] > x[0] && x[3] > x[1] && x[3] > x[2] && x[3] > x[4]) { y =(x[3]-32)*5/9; printf("Highest Temperature: %.1f %.2f\n", x[3],y); } else if(x[4] > x[0] && x[4] > x[1] && x[4] > x[2] && x[4] > x[3]) { y =(x[4]-32)*5/9; printf("Highest Temperature: %.1f %.2f\n", x[4],y); } printf("\n"); for(i=0;i<37;i++) { printf("-"); } printf("\n\n"); z=(x[0]+x[1]+x[2]+x[3]+x[4])/5; y=(z-32)*5/9; printf("Mean Temperature: %.1f %.2f\n", z,y); printf("\n"); for(i=0;i<37;i++) { printf("-"); } printf("\n\n"); printf("Raw Data..\n"); for(i=0;i<5;i++) { y=(x[i]-32)*5/9; printf("WeatherStation %d = %.1f %.2f\n", i,x[i],y); } for(i=0;i<37;i++) { printf("-"); } printf("\n\n"); printf("\n=====End Temperature Data Report=====\n\n"); getch(); }

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#3
October 19, 2010 at 21:09:45
 Hey! This is what I have so far...but i'm not sure if its right..i'm still confused./* title: NGS Temperature Data Report.cpp description: illustrates the highest and lowest temperatures of the day.*/#include #include using namespace std;int main(){ int Count, Sum = 0; string Value; double List[51]; cout << "Enter reported temperatures..." << endl; cout << "Fahrenheit" << endl; cout << "Weather Station 0 = 45" << endl; cout << "Weather Station 1 = 44" << endl; cout << "Weather Station 2 = 43" << endl; cout << "Weather Station 3 = 51" << endl; cout << "Weather Station 4 = 50" << endl; cout << "========NGS Temperature Data Report========" << endl; cout << "Raw Data..." << endl; cout << "Enter Values Below, Stop To Quit" << endl; for(Count = 0 ; Count < 51 ; Count++) { cout << "Enter Value: "; cin >> Value; if(Value == "Stop") break; List[Count] = atoi(Value.c_str() ); } int K; for(K = 0 ; K < Count ; K++) Sum += List[K]; for(K = 0 ; K < Count ; K++) cout << "List[" << K << "] = " << List[K] << endl; if(Count > 0) cout << "Mean Temperature = " << Sum / Count << endl; else cout << "No Values Entered" << endl; int Smallest = List[0]; for(K = 1 ; K < Count ; K++) if(List[K] < Smallest) Smallest = List[K]; cout << "Lowest Temperature = " << Smallest << endl; int Largest = List[0]; for(K = 1 ; K < Count ; K++) if(List[K] > Largest) Largest = List[K]; cout << "Highest Temperature = " << Largest << endl; cout << " Fahrenheit Celsius " << endl; cout << "-------------------------------------------" << endl; cout << "Lowest Temperature: 43.0 6.11" << endl; cout << "-------------------------------------------" << endl; cout << "Highest Temperature: 51.0 10.6" << endl; cout << "-------------------------------------------" << endl; cout << "Mean Temperature: 46.0 8.11" << endl; cout << "-------------------------------------------" << endl; cout << "Raw Data..." << endl; cout << "WeatherStation 0 = 45.0 7.22" << endl; cout << "WeatherStation 1 = 44.0 6.67" << endl; cout << "WeatherStation 2 = 43.0 6.11" << endl; cout << "WeatherStation 3 = 51.0 10.6" << endl; cout << "WeatherStation 4 = 50.0 10.0" << endl; cout << "-------------------------------------------" << endl; cout << "========End Temperature Data Report========" << endl; system("pause");

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#4
October 19, 2010 at 21:11:10
 Hey, this is what I have. Is this correct?/* title: NGS Temperature Data Report.cpp description: illustrates the highest and lowest temperatures of the day.*/#include #include using namespace std;int main(){ int Count, Sum = 0; string Value; double List[51]; cout << "Enter reported temperatures..." << endl; cout << "Fahrenheit" << endl; cout << "Weather Station 0 = 45" << endl; cout << "Weather Station 1 = 44" << endl; cout << "Weather Station 2 = 43" << endl; cout << "Weather Station 3 = 51" << endl; cout << "Weather Station 4 = 50" << endl; cout << "========NGS Temperature Data Report========" << endl; cout << "Raw Data..." << endl; cout << "Enter Values Below, Stop To Quit" << endl; for(Count = 0 ; Count < 51 ; Count++) { cout << "Enter Value: "; cin >> Value; if(Value == "Stop") break; List[Count] = atoi(Value.c_str() ); } int K; for(K = 0 ; K < Count ; K++) Sum += List[K]; for(K = 0 ; K < Count ; K++) cout << "List[" << K << "] = " << List[K] << endl; if(Count > 0) cout << "Mean Temperature = " << Sum / Count << endl; else cout << "No Values Entered" << endl; int Smallest = List[0]; for(K = 1 ; K < Count ; K++) if(List[K] < Smallest) Smallest = List[K]; cout << "Lowest Temperature = " << Smallest << endl; int Largest = List[0]; for(K = 1 ; K < Count ; K++) if(List[K] > Largest) Largest = List[K]; cout << "Highest Temperature = " << Largest << endl; cout << " Fahrenheit Celsius " << endl; cout << "-------------------------------------------" << endl; cout << "Lowest Temperature: 43.0 6.11" << endl; cout << "-------------------------------------------" << endl; cout << "Highest Temperature: 51.0 10.6" << endl; cout << "-------------------------------------------" << endl; cout << "Mean Temperature: 46.0 8.11" << endl; cout << "-------------------------------------------" << endl; cout << "Raw Data..." << endl; cout << "WeatherStation 0 = 45.0 7.22" << endl; cout << "WeatherStation 1 = 44.0 6.67" << endl; cout << "WeatherStation 2 = 43.0 6.11" << endl; cout << "WeatherStation 3 = 51.0 10.6" << endl; cout << "WeatherStation 4 = 50.0 10.0" << endl; cout << "-------------------------------------------" << endl; cout << "========End Temperature Data Report========" << endl; system("pause");

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#5
October 20, 2010 at 15:02:13
 if you're required to use the vector, it may be a good idea to use it instead of the array. If you're confused about its syntax, then typedef it to something more recognizable.typedef vector vec_double;vec_double List;If you're after a double, then use atof and not atoi. Note: if that function fails, it returns 0; if 0 is valid data for your program, then you may run into data being tainted. You might try sscanf instead as it will return the number of successfully stored conversions and not a possible data value.int ret = sscanf(value.c_str(), "%lf", &List.at(index));```#include #include // required for sscanf ... vector List(51, 0.0); or maybe vec_double List(51, 0.0); ... List.at(index) = some_value; // most like List[0-50] ```HTH-------------------------------------------I have no aspiration for preaching. ;-)

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