0_0_37742112_20957.cpp: In function 'void del(ll)':
0_0_37742112_20957.cpp:33:10: error: expected unqualified-id before '[' token
auto [x1,y1,x2,y2]=a[pos];
^
0_0_37742112_20957.cpp:34:8: error: 'x1' was not declared in this scope
if(x1>x2) {
^
0_0_37742112_20957.cpp:34:11: error: 'x2' was not declared in this scope
if(x1>x2) {
^
0_0_37742112_20957.cpp:37:8: error: 'y1' was not declared in this scope
if(y1>y2) {
^
0_0_37742112_20957.cpp:37:11: error: 'y2' was not declared in this scope
if(y1>y2) {
^
0_0_37742112_20957.cpp:40:14: error: 'x1' was not declared in this scope
for(ll i=x1; i<=x2; i++) {
^
0_0_37742112_20957.cpp:40:21: error: 'x2' was not declared in this scope
for(ll i=x1; i<=x2; i++) {
^
0_0_37742112_20957.cpp:41:18: error: 'y1' was not declared in this scope
for(ll j=y1; j<=y2; j++) {
^
0_0_37742112_20957.cpp:41:25: error: 'y2' was not declared in this scope
for(ll j=y1; j<=y2; j++) {
^
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