Compilare: main.cpp: In function 'void df(int)': main.cpp:18:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 18 | for (int i=0;i<g[x].size();++i) | ~^~~~~~~~~~~~ main.cpp: In function 'void df2(int)': main.cpp:30:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | for (int i=0;i<G[x].size();++i) | ~^~~~~~~~~~~~ main.cpp: In function 'void dfff(int)': main.cpp:38:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 38 | for (int i=0;i<vv[x].size();++i) | ~^~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:79:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 79 | for (j=0;j<c[i].size();++j) | ~^~~~~~~~~~~~ main.cpp:80:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 80 | for (k=0;k<g[c[i][j]].size();++k) | ~^~~~~~~~~~~~~~~~~~ main.cpp:92:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 92 | for (j=0;j<c[t[i]].size();++j) | ~^~~~~~~~~~~~~~~ main.cpp:95:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 95 | for (k=0;k<G[c[t[i]][j]].size();++k) | ~^~~~~~~~~~~~~~~~~~~~~ main.cpp:126:14: warning: this 'for' clause does not guard... [-Wmisleading-indentation] 126 | {for (trey=j+1;trey<=m+1;++trey) | ^~~ main.cpp:127:50: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for' 127 | aa[k][trey]-=aa[k][j]*aa[irii][trey];aa[k][j]=0;} | ^~ main.cpp:155:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 155 | for (j=0;j<c[t[i]].size();++j) | ~^~~~~~~~~~~~~~~ main.cpp:158:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 158 | for (k=0;k<G[c[t[i]][j]].size();++k) | ~^~~~~~~~~~~~~~~~~~~~~ main.cpp:192:14: warning: this 'for' clause does not guard... [-Wmisleading-indentation] 192 | {for (trey=j+1;trey<=m+1;++trey) | ^~~ main.cpp:193:50: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for' 193 | aa[k][trey]-=aa[k][j]*aa[irii][trey];aa[k][j]=0;} | ^~