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				@@ -61,9 +61,9 @@ static void get_cpu_usage(unsigned long long* total_cpu_time, 
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				   std::stringstream first_line_s(first_line); 
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				   for (int i = 0; i < 10; ++i) { 
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				     std::getline(first_line_s, cpu_time_str, ' '); 
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				-    *total_cpu_time += std::stoi(cpu_time_str); 
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				+    *total_cpu_time += std::stol(cpu_time_str); 
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				     if (i == 3) { 
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				-      *idle_cpu_time = std::stoi(cpu_time_str); 
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				+      *idle_cpu_time = std::stol(cpu_time_str); 
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				     } 
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				   } 
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				 } 
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