[PWGCF] Efficiency Correction Added using CCDB Histograms

[rahulverma012]

Code now contains parts related to efficiency correction implemented using the Histograms stored in CCDB.

[github-actions]

O2 linter results: ❌ 0 errors, ⚠️ 0 warnings, 🔕 3 disabled

[alibuild]

Error while checking build/O2Physics/staging for 6b682ec at 2026-08-21 08:23:

## sw/BUILD/O2Physics-latest/log
c++: fatal error: Killed signal terminated program cc1plus
c++: fatal error: Killed signal terminated program cc1plus
c++: fatal error: Killed signal terminated program cc1plus
c++: fatal error: Killed signal terminated program cc1plus
ninja: build stopped: subcommand failed.

Full log here.

[alibuild]

Error while checking build/O2Physics/o2 for ab1a41e at 2026-08-21 10:11:

No log files found

Full log here.

[alibuild]

Error while checking build/O2Physics/code-check for ab1a41e at 2026-08-21 12:16:

## sw/BUILD/O2Physics-code-check-latest/log
--
========== List of issues found ==========
++ echo 'Found 74 errors and 216 warnings.'
Found 74 errors and 216 warnings.
++ [[ 74 -gt 0 ]]
++ cat /sw/BUILD/438ade37394846621a8ba967cd0075cac853d4b1/O2Physics-code-check/errors.txt
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:18:1: error: included header mcCentrality.h is not used directly [misc-include-cleaner,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:39:1: error: included header O2DatabasePDGPlugin.h is not used directly [misc-include-cleaner,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:43:1: error: included header LorentzVector.h is not used directly [misc-include-cleaner,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:44:1: error: included header PxPyPzM4D.h is not used directly [misc-include-cleaner,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:128:9: error: macro 'BIT_IS_K0S' used to declare a constant; consider using a 'constexpr' constant [cppcoreguidelines-macro-usage,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:129:9: error: macro 'BIT_IS_LAMBDA' used to declare a constant; consider using a 'constexpr' constant [cppcoreguidelines-macro-usage,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:130:9: error: macro 'BIT_IS_ANTILAMBDA' used to declare a constant; consider using a 'constexpr' constant [cppcoreguidelines-macro-usage,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:131:9: error: macro 'BIT_IS_GAMMA' used to declare a constant; consider using a 'constexpr' constant [cppcoreguidelines-macro-usage,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:132:9: error: macro 'BIT_IS_PHI_1020' used to declare a constant; consider using a 'constexpr' constant [cppcoreguidelines-macro-usage,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:133:9: error: macro 'BIT_IS_JPSI_TO_EE' used to declare a constant; consider using a 'constexpr' constant [cppcoreguidelines-macro-usage,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:134:9: error: macro 'BIT_IS_JPSI_TO_MUMU' used to declare a constant; consider using a 'constexpr' constant [cppcoreguidelines-macro-usage,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:135:9: error: macro 'BIT_IS_RHO_770' used to declare a constant; consider using a 'constexpr' constant [cppcoreguidelines-macro-usage,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:136:9: error: macro 'BIT_IS_KSTAR_892' used to declare a constant; consider using a 'constexpr' constant [cppcoreguidelines-macro-usage,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:137:9: error: macro 'BIT_IS_KSTAR_892_BAR' used to declare a constant; consider using a 'constexpr' constant [cppcoreguidelines-macro-usage,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:138:9: error: macro 'BIT_IS_LAMBDA_1520' used to declare a constant; consider using a 'constexpr' constant [cppcoreguidelines-macro-usage,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:139:9: error: macro 'BIT_IS_DELTA_1232' used to declare a constant; consider using a 'constexpr' constant [cppcoreguidelines-macro-usage,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:141:9: error: macro 'BIT_POS_DAU_HAS_SAME_COLL' used to declare a constant; consider using a 'constexpr' constant [cppcoreguidelines-macro-usage,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:142:9: error: macro 'BIT_NEG_DAU_HAS_SAME_COLL' used to declare a constant; consider using a 'constexpr' constant [cppcoreguidelines-macro-usage,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:143:9: error: macro 'BIT_BOTH_DAU_HAS_SAME_COLL' used to declare a constant; consider using a 'constexpr' constant [cppcoreguidelines-macro-usage,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:145:9: error: macro 'BIT_POS_DAU_HAS_SAME_COLL_BC' used to declare a constant; consider using a 'constexpr' constant [cppcoreguidelines-macro-usage,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:146:9: error: macro 'BIT_NEG_DAU_HAS_SAME_COLL_BC' used to declare a constant; consider using a 'constexpr' constant [cppcoreguidelines-macro-usage,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:147:9: error: macro 'BIT_BOTH_DAU_HAS_SAME_COLL_BC' used to declare a constant; consider using a 'constexpr' constant [cppcoreguidelines-macro-usage,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:149:9: error: function-like macro 'BITSET' used; consider a 'constexpr' template function [cppcoreguidelines-macro-usage,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:150:9: error: function-like macro 'BITCHECK' used; consider a 'constexpr' template function [cppcoreguidelines-macro-usage,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:151:9: error: function-like macro 'OTHERBITS' used; consider a 'constexpr' template function [cppcoreguidelines-macro-usage,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:153:9: error: function-like macro 'BOOL_BITCHECK' used; consider a 'constexpr' template function [cppcoreguidelines-macro-usage,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:154:9: error: function-like macro 'BOOL_OTHERBITSON' used; consider a 'constexpr' template function [cppcoreguidelines-macro-usage,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:243:16: error: no header providing "o2::framework::LabeledArray" is directly included [misc-include-cleaner,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:383:15: error: no header providing "RecoDecay" is directly included [misc-include-cleaner,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:460:33: error: no header providing "Form" is directly included [misc-include-cleaner,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:476:8: error: constructor does not initialize these fields: ccdb [cppcoreguidelines-pro-type-member-init,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:689:5: error: no header providing "size_t" is directly included [misc-include-cleaner,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:932:10: error: no header providing "std::stringstream" is directly included [misc-include-cleaner,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:992:3: error: no header providing "TH2F" is directly included [misc-include-cleaner,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:1014:26: error: do not use reinterpret_cast [cppcoreguidelines-pro-type-reinterpret-cast,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:1026:40: error: do not use reinterpret_cast [cppcoreguidelines-pro-type-reinterpret-cast,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:1421:18: error: no header providing "std::ostringstream" is directly included [misc-include-cleaner,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:1440:93: error: repeated branch body in conditional chain [bugprone-branch-clone,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:1444:93: error: repeated branch body in conditional chain [bugprone-branch-clone,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:1685:9: error: variable 'iPidMode' is not initialized [cppcoreguidelines-init-variables,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:1686:9: error: variable 'signType' is not initialized [cppcoreguidelines-init-variables,-warnings-as-errors]
PWGCF/EbyEFluctuations/Tasks/kaonIsospinFluctuations.cxx:1687:9: error: variable 'variableType' is not initialized [cppcoreguidelines-init-variables,-warnings-as-errors]
[0 more errors; see full log]

Full log here.