# -*- coding: utf-8 -*-
import openpyxl
wb=openpyxl.load_workbook("한국지역난방공사.xlsx"); ws=wb.active
cands=[(5,3,4),(5,26,27),(5,54,55),(5,142,143),(5,159,160),(5,202,203),(5,224,225),
(6,3,5),(6,28,29),(6,46,47),(6,54,56),(6,62,63),(6,75,76),(6,107,108),(6,149,150),(6,163,164),
(7,29,30),(7,46,47),(7,62,64),(7,108,109),(7,119,120),(7,163,165),(7,179,180)]
existing=[(mr.min_col,mr.min_row,mr.max_row,mr.max_col) for mr in ws.merged_cells.ranges if mr.min_col==mr.max_col]
prob=0
for (c,r1,r2) in cands:
    for (ec,er1,er2,emc) in existing:
        if ec==c and not(er2<r1 or er1>r2):  # overlap in same col
            print("OVERLAP cand col%d %d:%d with existing %d:%d"%(c,r1,r2,er1,er2)); prob+=1
print("overlap problems:",prob)