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//////// Structures //////

struct Study
{
int number;
SCGraphData subgraphs;
};

struct Chart
{
int number;
std::vector<Study> studies;
};

std::vector<Chart> v_charts;

//// Filling up the "v_charts" vector with chart numbers and studies IDs

std::string chart_name = "";
std::string study_name = "";
SCString subgraph_name = "";

for (int chart_number = 1; chart_number < 10; chart_number++)
{
chart_name = sc.GetChartName(chart_number);

if (chart_name == "")
continue;

Chart chart;
chart.number = chart_number;

for (int study_number = 1; study_number < 30; study_number++)
{
study_name = sc.GetStudyNameFromChart(chart_number, study_number);

if (study_name == "")
continue;

SCGraphData sc_study;
sc.GetStudyArraysFromChartUsingID(chart_number, study_number, sc_study);

Study study;

study.number = study_number;
study.subgraphs = sc_study;

chart.studies.push_back(study);
}

v_charts.push_back(chart);
}


////////////////the following code works//////
SCGraphData sc_study1;
sc.GetStudyArraysFromChartUsingID(1, 1, sc_study1);
v_charts[0].studies[0].subgraphs = sc_study1;

SCGraphData sc_study2;
sc.GetStudyArraysFromChartUsingID(1, 2, sc_study2);
v_charts[0].studies[1].subgraphs = sc_study2;

SCGraphData sc_study3;
sc.GetStudyArraysFromChartUsingID(1, 3, sc_study3);
v_charts[0].studies[2].subgraphs = sc_study3;



/////////////The following code doesn't work//////
//[b]If i put the above in a loop, the result of last iteration of the loop will overwrite all the previous iterations; in other words: the output of the 3 studies will be the same as the output of the study in the last iteration.[/b]

for (Chart& chart : v_charts)
{
for (Study& study : chart.studies)
{
SCGraphData subgraphs;
sc.GetStudyArraysFromChartUsingID(chart.number , study.number, subgraphs);
study.subgraphs = subgraphs;
}
}