help me in this code.Error is in else statement

Question

#include <iostream>
#include<vector>

using namespace std;

int main() {
int n,q,l,m,o,sum;
cin >>n;
cin>>q;
vector <int>v(n,0);
for(int i=0;i<n;i++)
{
cin>>v[i];
}
for(int i=0;i<q;i++)
{ cin>>l>>m>>o;
if(l==1&&m<n)
{
v[m]=o;
}
if(l==2&&m<n&&o<n)
{ sum=0;
for(int j=m;j<=n;j++)
{
sum=sum+v[j];
}
cout<<sum<<endl;
}
else//if i remove this else statement it works fine otherwise it gives runtime error NZEC
return -1;
}
}

Answer 1

output ka chod return -1 for loop(i=0;i<q..) k ander h, to for loop ek hi bar chalega fir band
input 2 dega to second for loop(j=m; j<=n...) chalega fir band

ab tuje krna kya bata de

Answer 2

bhai tere program me hamesha else chelaga
tera return bade wale for loop k andr h to program ek hi bar chalega

else
break;

try kr. tab jake kuch hoga, return nikal de

Answer 3

ok samaj gaya thanks

Answer 4

so where is the else part??

Answer 5

in last statement I have write comment there

Answer 6

if u want input I can give u

Answer 7

i meant the statement inside the else block

Answer 8

it is return -1,am i have done wrong?

Answer 9

you just left it empty

Answer 10

no there is statement return -1see c

Answer 11

well then its working fine
https://code.sololearn.com/cB5X7R6f8hpb/?ref=app

Answer 12

it is giving runtime error nzec and giving wrong output

Answer 13

input
5
5
2
3
4
8
9
1
0
3
2
0
1
2
0
4
1
2
5
2
0
3

Answer 14

output should be 6
27
19

Answer 15

naa ho payega tere se rahne de

Answer 16

cout<<"hi"<<"v[m]";:)

Answer 17

abe tera input hi itna khatrnak h to kaise samjega

Answer 18

code dekh le samaj jayega sab sahi hai
else hi lafda Kar Raha hai

Answer 19

Hatsy Rei can u help? please

Answer 20

yadi l=2 aur1 ke Barabar nahi hai
toh else chalega