View Compilation Error

0_0_21871288_1501.cpp: In function 'void dijkstra(ll*, std::vector<std::pair<long long int, int> >*, int*)':
0_0_21871288_1501.cpp:40:23: error: conversion from 'const value_type {aka const point}' to non-scalar type 'pii {aka std::pair<long long int, int>}' requested
         pii t = q.top();
                       ^
0_0_21871288_1501.cpp:42:19: error: 'pii' has no member named 'u'
         int u = t.u;
                   ^
0_0_21871288_1501.cpp: In function 'void dijkstra2(ll*, std::vector<std::pair<long long int, int> >*, int*, int*)':
0_0_21871288_1501.cpp:77:23: error: conversion from 'const value_type {aka const point}' to non-scalar type 'pii {aka std::pair<long long int, int>}' requested
         pii t = q.top();
                       ^
0_0_21871288_1501.cpp:79:19: error: 'pii' has no member named 'u'
         int u = t.u;
                   ^